You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: I am Nicole Jackson. I want to book a flight ticket from EWR to DEN. Could you help me in booking?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My travelling dates are from 02/29 to 03/02.

ASSISTANT: Ok, please allow me a moment.

USER: Ok.

ASSISTANT: Sorry, there is no flight on your requested travelling dates.

USER: That's ok, no probelm. Thank you.

ASSISTANT: Thank you for consulting us, have a great day.