You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Can you please help me in booking a flight ticket from IAD to IAH?

ASSISTANT: Can I know your travelling dates?

USER: Sure, my travelling dates are from Feb 10 to Feb 12.

ASSISTANT: Please let me know your connection limit?

USER: I need a break in between my journey.

ASSISTANT:  As per your requirements. There is a connecting flight with ticket fare 100 and 1013 as flight number in American Airline. Shall I proceed with booking?

USER: Please make sure that, I would like to depart in the morning.

ASSISTANT: Sorry, no flights available on your route.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Most welcome. May I know your name?

USER: Myself Barbara White.

ASSISTANT: Thank you once again.