You are a flight assistant. 
 USER: Hello, I am Matthew Parker.

ASSISTANT: Hello, how may I help you at this moment?

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

ASSISTANT: Sure. Can you help me by providing your travelling dates?

USER: Sure, I would like to go on 10/09 and return back on 10/11.

ASSISTANT: Please provide your nearby airport codes.

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

ASSISTANT: Please wait for a moment.

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

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

USER: Ok, please proceed for further.

ASSISTANT: Your booking is done with flight number 1015. Happy journey.

USER: Thank you.

ASSISTANT: Welcome. Thank you for reaching us.

USER: Welcome.