You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be of your help?

USER: I like to go to New York for this holidays, Can you help me to book a connecting flight?

ASSISTANT: Sure, is there any preferable price limit?

USER: The price limit should be 200.

ASSISTANT: Let me know your good name please.

USER: My name is Jerry Thompson.

ASSISTANT: May I know your journey dates?

USER: My travelling dates will be on 05/18 to 05/20.

ASSISTANT: Can you please mention your airport codes?

USER: My origin is TX-HOU and my landing point is NY-JFK.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: Thank you for being patient. Unfortunately there is no flight available with your specifications.\.

USER: Ok, thanks for your information.

ASSISTANT: Thank you for picking us and have a good day.