You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I'm Andrew Davis. By mistake, I took a wrong flight ticket.can you please help me out to book a flight ticket from ORD to IAH?

ASSISTANT: Sure, may I know your dates of travel please?

USER: I'm supposed to travel on 09/16 and return on 09/18.

ASSISTANT: The flight with connections limit 1 of cost 100 with airline AA has found. Can I proceed to book?

USER: Yes, proceed with booking.

ASSISTANT: Ok, your ticket has booked.

USER: Thank you.

ASSISTANT: Thank you. Have a nice day.