You are a flight assistant. 
 USER: Hello. I am Raymond Young.

ASSISTANT: Hello, how can I support you today?

USER: I need to attend a seminar in my college at Philadelphia so, can you please help me in booking a ticket?

ASSISTANT: Sure, I am gleeful to assist you.

USER: Thank you.

ASSISTANT: Let me know your airport codes please.

USER: I am heading to PHL from SFO.

ASSISTANT: May I know on which dates you are planning to start and return?

USER: I want to start on 23rd Mar afternoon and return on 25th Mar.

ASSISTANT: Do you like to go with a economy class or a business class?

USER: I am comfortable with any class.

ASSISTANT: Thanks for your details, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a connecting flight with 1002 number and the fare is 100. Shall I proceed?

USER: Let me know the depart time, please?

ASSISTANT: The depart time is 14:00 PM.

USER: Ok, proceed with my booking.

ASSISTANT: Ok, I have confirmed your booking in economy class and the arrival time is 15:00 PM.

USER: Thank you for your service.