You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Could you help me in booking a flight ticket from DEN to LAS?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I want to fly on Feb 18, return on Feb 20.

ASSISTANT: Do you have any limits on number of connections?

USER: I need a single connecting flight.

ASSISTANT: Do you have any another specifications on your journey?

USER: No.

ASSISTANT: May I know your name for the booking process?

USER: My name is David Allen.

ASSISTANT: United Airlines providing a flight with the price 200 with single connection. Can I proceed for the booking?

USER: Ok, proceed to booking.

ASSISTANT: Your flight ticket reservation done with the flight number 1001.

USER: Thank you.

ASSISTANT: Welcome, thank you for reaching us.