You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: I want to go to PHX next week so can you please help me in flight ticket booking process from BOS?

ASSISTANT: Sure, please share me your trip dates.

USER: Thank you for your response, I want to take off on May 25 and book my return ticket also on May 27.

ASSISTANT: May I know your airlines specifications?

USER: I am comfortable with any airline.

ASSISTANT: Please share me your other preferences.

USER: I will only consider direct flight so please check with this.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: Sure, my name is Gregory Lewis.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: That's ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.