You are a flight assistant. 
 USER: Hello. I am Betty Evans.

ASSISTANT: Hello, how can I support you today?

USER: I got a chance to play a small role in movie, I want to attend screening test in Universal Studio in New York, EWR. Can you please help me in booking flight ticket from Denver, CO?

ASSISTANT: Sure, Can you please provide your class preference?

USER: I am comfortable with any class.

ASSISTANT: Do you have any restrictions on your depart and arrival timings?

USER: My departure time is morning.

ASSISTANT: Let me know your planned journey dates.

USER: My travelling dates are from June 19 to June 21.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry to inform you that, there were no flights found based on your requested details.

USER: That's ok, not a problem. Thanks for your information.

ASSISTANT: Thank you for choosing us.