You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you at this moment?

USER: Can you please book me a flight ticket to Houston?

ASSISTANT: Sure, please provide your takeoff and landing airport codes?

USER: Chicago, IL - ORD is my boarding point and TX - HOU is my landing point.

ASSISTANT: Ok, could you please share your travelling dates?

USER: I need to start on 09/27 so that I can attend my last exam. I need to return on 09/29.

ASSISTANT: Ok, Do you have any other specifications?

USER: Yes, I need one connection in between my journey. 500 is my price limit.

ASSISTANT: Ok, wait for few minutes.

USER: Sure.

ASSISTANT: Thank you for waiting, there is a Spirit airline with fare of 200. Can I proceed with booking?

USER: You can proceed for booking.

ASSISTANT: To proceed further we need your good name please?

USER: Jack Collins is my name.

ASSISTANT: Your ticket has been confirmed with flight number 1027.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you for reaching us.