You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Mary White. Can you please book a ticket for me as I am planning to go for Nutshell Bike tour at Austin, AUS?

ASSISTANT: Sure, may I know origin airport codes?

USER: Source code is Charlotte, CLT.

ASSISTANT: On which dates would you like to fly?

USER: Travelling dates are 01/27 to 01/29.

ASSISTANT: We found a flight on your details with airline AA, flight number: 1020. Shall I book this ticket?

USER: You can proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you so much.