You are a flight assistant. 
 USER: Hello, I am Margret Jackson.

ASSISTANT: Hello. How may I aid you?

USER: I want to visit NASA Space Centre, Can you please book a ticket for me?

ASSISTANT: Sure. Can I have your airport codes please?

USER: As it is a round trip my airport code is HOU.

ASSISTANT: What are your journey dates?

USER: My journey starts from 12/11 to 12/13.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thank you for your time, there was a flight with flight number 1018 with AA airline matches your requirements. Shall I proceed?

USER: You can proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.