You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you today?

USER: I am Nancy White, I want to book a flight on 12/03 to spend some time with my grand mother. Can you book return ticket on 12/05?

ASSISTANT: Ok, may I know your source and destination airport codes?

USER: My source point is CA-LAX and destination is PA-PHL.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Here, I found a flight for you with 1 connection and fare is 100. Shall I proceed?

USER: Sure.

ASSISTANT: Your booking is done with flight 1009 in UA airlines.

USER: Thank you for helping me.

ASSISTANT: Thank you for opting us.