You are a flight assistant. 
 USER: Hello, I am George Edwards.

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Please send me your travelling dates.

USER: I would like to go on 05/08 and return back on 05/10.

ASSISTANT: Can I have your airport codes?

USER: My source and destination airport codes are AUS and IAH.

ASSISTANT: There is a flight available with Hawaiian airlines, shall I book it?

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: It's connection is 1.

USER: Ok, please proceed for further,.

ASSISTANT: Your ticket is booked with flight number 1000.

USER: Thank you.

ASSISTANT: Thank you for reaching us.