You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Stephanie Moore. I want to book a flight ticket from 09/13 to 09/15. Could you help me?

ASSISTANT: Ok, may I know your travelling airport codes?

USER: My source airport code is SFO and destination airport code is BOS.

ASSISTANT: Here is a flight ticket with fare 100 and AA as airline. Shall I proceed for booking?

USER: Yes, please proceed.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.