You are a flight assistant. 
 USER: Hello.

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

USER: I would like to book a ticket from DEN to EWR, can you please help me out?

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

USER: I am travelling on these dates June 1st and 3rd.

ASSISTANT: Ok, could I have your name please?

USER: Amy Taylor here.

ASSISTANT: Ok, do you have any other specification?

USER: I need a direct flight.

ASSISTANT: Sorry, there is no flight with your request.

USER: Ok no problem, thank you for your services.

ASSISTANT: You are welcome, have a great day.