You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Andrew Scott here.

ASSISTANT: How can I aid you?

USER: I need to reserve a ticket from DEN to JFK, could you help me in reserving a ticket?

ASSISTANT: Sure, we are perky to assist you. When are you planning to make your journey?

USER: My trip dates are 11/04 to 11/06.

ASSISTANT: Do you prefer any break in between journey?

USER: I need a connecting flight.

ASSISTANT: Is there any other specifications?

USER: I would like to return in afternoon time.

ASSISTANT: Thanks for providing details, we are sorry to inform you that no flights are available on your journey routes.

USER: Ok, not an issue. Thank you for checking the status.

ASSISTANT: Thank you for choosing us.