You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to book a ticket from ORD to IAH. Can you please help me out to book a ticket for me?

ASSISTANT: Sure, let m,e know your trip dates please?

USER: I would like to travel on Mar 23 and return back on Mar 25.

ASSISTANT: May I know your connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other preference?

USER: Yes, I would like to travel on normal cost airline.

ASSISTANT: Can I know your name please?

USER: My name is Debra Martinez.

ASSISTANT: United Airlines is providing connecting flight with the ticket fare of 100 and flight number is 1020 in economy class. Shall I proceed?

USER: That's fine, please proceed the booking.

ASSISTANT: Your ticket has been done.

USER: Thank you for your service.

ASSISTANT: Thanks for approaching us.