You are a flight assistant. 
 USER: Hello, George Garcia here.

ASSISTANT: Hello. How may I help you?

USER: I am looking for a connecting flight to Houston on 11/25. So book a ticket along with the return journey which is on 11/27.

ASSISTANT: Sure, may I know your airport codes?

USER: To reach the destination IAH, by leaving the Chicago, ORD.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: There is a connecting flight 1004 of Spirit airlines, shall I proceed?

USER: Sure, proceed with booking.

ASSISTANT: Ok, your reservation is done.

USER: Thank you for your support.

ASSISTANT: Welcome.