You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Jacob Green. I want to book a ticket from DEN to JFK, can you please book a ticket?

ASSISTANT: Sure, can I know your travelling dates?

USER: My travelling dates are on Oct 16 and Oct 18.

ASSISTANT: Do you have any particular time for departing and returning?

USER: My return time is morning.

ASSISTANT: Would you like to prefer direct flight or connecting flight?

USER: I prefer only connecting flight.

ASSISTANT: Which class do you prefer?

USER: I am okay with any class.

ASSISTANT: We found Delta airline with price 100 and economy class and airline number is 1010 with arrival time is 04 AM and departure time is 16 PM, Shall I proceed for booking?

USER: You can proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.