You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephan Perez.

ASSISTANT: How may I help you?

USER: I am planning to book a ticket to attend a meeting at SFO. Can you please help me out?

ASSISTANT: Sure, I am here to help you. Could you please share your travelling dates?

USER: I am planing to travel on 05/13 and return back on 05/15.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: May I know your source airport?

USER: My source code is BOS.

ASSISTANT: There is a connecting flight 1008 of UA airlines, shall I proceed with booking?

USER: Please proceed the booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your information.

ASSISTANT: You are welcome.