You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Betty Thomas. I want to go for comic show at Dallas, DFW. Can you please book a ticket for me?

ASSISTANT: Sure, may I know your travel dates?

USER: My depart is on 09/27 and return is on 09/29.

ASSISTANT: May I know your origin airport code?

USER: Source code is Seattle, SEA.

ASSISTANT: We found a flight on your details with airline JetBlue, flight number:1000. Shall I book this ticket.

USER: You can proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.