You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I planned to meet my friend in DCA, can you please help me to book a flight ticket from DEN?

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

USER: I prefer to travel on Aug 14 and Aug 16.

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

USER: I prefer to travel in a connecting flight.

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

USER: I am David Rodriguez.

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

USER: No.

ASSISTANT: United Airlines providing a flight with the price 100 with single connection. Can I proceed for the booking?

USER: Ok, please confirm my booking.

ASSISTANT: Your flight ticket reservation done with the flight number 1011.

USER: Thank you for your help.

ASSISTANT: Welcome, thank you for reaching us.