You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Nicholas Hall. I am planning to travel from DFW to JFK to meet my client, can you help me?

ASSISTANT: May  know your travelling dates please?

USER: I am departing on 03/15 and return on 03/17.

ASSISTANT: I am sorry no flights found on your route. Thank you for choosing us.

USER: That's ok, thank you for your information.