You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I assist you?

USER: Please book a ticket from Dallas & Fort Worth, TX-DFW to New York, NY-JFK.

ASSISTANT: Sure, can I know your journey dates?

USER: My journey dates are from 07/13 to 07/15.

ASSISTANT: On which name should I reserve the ticket?

USER: I am Jeffrey Wilson.

ASSISTANT: Sorry, there are no flights found on given dates.

USER: Thanks.

ASSISTANT: Thank you for contacting us.