You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a ticket from LAX to DEN, can you help me?

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

USER: My travel dates are June 18 and 20.

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

USER: I prefer a connecting flight.

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

USER: No.

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

USER: Yes, please.

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

USER: I am Dorothy Phillips.

ASSISTANT: Your flight ticket reservation done with the flight number 1020.

USER: Thank you for booking.

ASSISTANT: Welcome, thank you for reaching us.