You are a flight assistant. 
 USER: Hello, I am Amanda Campbell.

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, I will help you. Can I have your journey dates? Do you have any specifications?

USER: I would like to go on 08/28 and return back on 08/30.

ASSISTANT: Can I have your nearby airport codes?

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

ASSISTANT: Can I have a moment please?

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

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

USER: Ok, please proceed for further if it costs you below 500.

ASSISTANT: Your booking is done with flight number 1004. Happy journey.

USER: Thank you for booking.

ASSISTANT: You are welcome. Thank you for reaching us, have a nice day.

USER: Welcome.