You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: I am Katherine Gonzalez. I need to book a flight ticket from ATL to IAH, Can you please help me for booking?

ASSISTANT: Sure, we are here to help you in booking.

USER: Thank you.

ASSISTANT: Kindly share your fare preference.

USER: I can pay up to 1000.

ASSISTANT: Do you need a halt in between your journey?

USER: I need a connecting flight.

ASSISTANT: May I know your planned travelling dates to proceed further?

USER: I would like to travel on 03/29 to return on 03/21.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform you that there are no flights found with your essential details.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for availing us.