You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Debra Campbell, help in searching a flight from PHL. I would like to fly on 12/11 and 12/13.

ASSISTANT: May I know your destination code?

USER: My destination place is OAK.

ASSISTANT: Here is a flight with price 200 and AA is airline name. May I proceed.

USER: Yes, please.

ASSISTANT: Ok, your ticket has been booked with 1022 number.

USER: Thank you.

ASSISTANT: Thank you for reaching us.