You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Nancy Taylor here, I would like to travel from PHL. can you please help me to book a ticket with price 200. It is a round trip.

ASSISTANT: Okay. May I know your destination code? Ok, sorry. May I know your trip dates?

USER: My travelling dates will be on 08/28 to 08/30.

ASSISTANT: We found a flight on AA airline, flight number 1014 with the fare of 100.

USER: You can proceed to booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for opting us.