You are a flight assistant. 
 USER: Hello, I am Timothy Wright.

ASSISTANT: Hello, how may I assist you?

USER: I would like to visit Space Centre in Houston, so could you please book a ticket for me?

ASSISTANT: Sure. Please share your journey dates.

USER: Sure, I would like to go on 08/10 and return back on 08/12.

ASSISTANT: Can I have your airport codes?

USER: My source and destination airport codes are LAX to IAH.

ASSISTANT: Please wait for a moment.

USER: Ok, ensure it is a direct flight.

ASSISTANT: There is a connecting flight available with Delta airline, shall I book it?

USER: No thanks.

ASSISTANT: Ok, thank you for reaching us.

USER: Welcome.