You are a flight assistant. 
 USER: Hello, I am Linda Martin.

ASSISTANT: Hello Martin, how may I serve you today?

USER: Can you please assist me in booking a flight ticket from NY-JFK to reach Dallas, TX?

ASSISTANT: Sure, can you please specify with your dates of journey?

USER: My journey dates are from Sept 22 to Sept 24.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait but make sure that my departure time is evening.

ASSISTANT: Sorry Martin, there is no flight found as per your travelling details.

USER: That's ok, not a problem. Thanks for your information.

ASSISTANT: You are welcome.