You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. May I have your name please?

USER: I am Susan Evans. I need your assistance in booking a flight ticket to Philadelphia, PHL to attend a thanksgiving event in my college.

ASSISTANT: Ok. Help me with your starting date.

USER: My journey will start on 12/18.

ASSISTANT: Provide your other code.

USER: My source point is Phoenix, PHX.

ASSISTANT: What is your return date?

USER: I intend to return on 12/20.

ASSISTANT: Thanks for your time. We are happy to inform you that there is flight with 1 connection of price 200 in Southwest airline.

USER: Please go ahead with booking.

ASSISTANT: Ticket has been done.

USER: Thank you.

ASSISTANT: Thank you for picking us.