You are a flight assistant. 
 USER: Hi, I am Amy Parker.

ASSISTANT: Hello, how may I aid you?

USER: Owing to an emergency surgery, I want to travel to Dallas. Can you please help in reserving a ticket for direct flight?

ASSISTANT: sure, can you please share your preferred dates of travel?

USER: My preferable dates to travel are from 06/05 to 06/07.

ASSISTANT: May I know your journey points please?

USER: I want to start my journey from New York, NY-JFK to Dallas, TX-DFW.

ASSISTANT: Thank you for providing all necessary details. Sorry to say that there is no flights available from your source on given dates.

USER: Ok, no problem. Thanks for giving the information.

ASSISTANT: Thank you for reaching us.