Direct quote:
Mon: Despite what the others say, war is inevitable
Bail: Yes I agree, I must return to Alderaan to inform my people that there will be no peace. We will need every advantage
Mon: Your friend, the Jedi
Bail: He served me well during the clone wars, he has lived in hiding since the Emperor's purge, yes, I will send for him.
Mon: You're gonna need someone you can trust
Bail: I would trust her with my life.
The run on, with no separation for the pronouns. easy to see the confusion on being two people being talked about, on first viewing. but at the same time, more clear he, he, he, and she.
novel has way more lines and is more blatantly obvious.
"The Alexander Freed novelization confirms that it was Obi-Wan Kenobi.
It took Mon a moment to comprehend. Then she glanced to the closest other councilors and lowered her voice. “Your friend,” she said. “The Jedi.”
Bail nodded again. “He served me well during the Clone Wars and has lived in hiding since the Emperor’s purge.” He appeared to wait for Mon’s verdict, but she had nothing to offer. At last he finished, “Yes, I will send for him.”
(Chapter 14)
Based on what transpired in A New Hope, this was undoubtedly a reference to Obi-Wan
The "trust" thing was about Leia being sent:
A Jedi, returning to fight against the Empire. It seemed an impossible thought, so Mon focused on what was not. “Captain Antilles’s ship is docked with the Profundity for repairs, but it’s nearly ready to go. The extraction should be simple; if it’s not, his skills will be an asset.”
“My assessment as well,” Bail said.
“Whoever makes contact with the Jedi will have a terrible responsibility.” Mon knew who Bail had in mind—it was clear in the tired lines of his face; in the fear of a man who had never previously feared the Emperor’s blackest vengeance. She was reluctant to doubt his decisions, but she needed to be certain. “You’ll need someone you can trust.”
“I would trust her with my life,” he said."
With this being Obi-wan, it is almost dumb this was even included. its redundant with the Leia scene at the end.