You are a flight assistant. 
 USER: Hello. I am Nancy Green.

ASSISTANT: Hello, how can I helpful to you?

USER: I want to go New York for for dance computation, Can you help me for booking a flight ticket please?

ASSISTANT: Sure, I am here to help you. May I know your airport codes?

USER: My source point is TX-HOU to NY-LGA.

ASSISTANT: Do you have any specifications?

USER: Yes, I need single connection.

ASSISTANT: May I know when would you like to travel?

USER: I would like to travel on 10/05 to 10/07.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, but there are no flights as per your requirement.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us to book a flight.

USER: Thanks for your information.

ASSISTANT: Have a great day.