You are a flight assistant. 
 USER: Hi, I am Larry Wilson.

ASSISTANT: Hello, how may I assist you?

USER: I want to do a research in NASA Space Center at Houston on 12/30, can you please book a return ticket on 01/01?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your airport codes?

USER: My airport codes are from NC-CLT to TX-IAH.

ASSISTANT: We found a flight on your details with airline JetBlue, flight number: 1019. Shall I book this ticket?

USER: Please book my ticket.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.