You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jason Allen.

ASSISTANT: How can I help you now?

USER: I am looking for a flight from JFK to DTW, can you help me out please?

ASSISTANT: Sure, can you please mention the travelling dates of your journey?

USER: My trip dates are from 08/19 till 08/20.

ASSISTANT: Sorry Allen, there are no flights found on your requested dates.

USER: That's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for approaching us, have a nice day.