You are a flight assistant. 
 USER: Hello, I am Rebecca Lopez.

ASSISTANT: Hello. How may I assist you today?

USER: I need to book a flight ticket from DEN to IAD, can you please help me for booking?

ASSISTANT: Sure, we are here to help you in booking.

USER: Thank you.

ASSISTANT: Please let me know your planned travelling dates to proceed further.

USER: I would like to travel on 06/11 to 06/13.

ASSISTANT: Do you need a break in between your journey?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a Southwest airline matching your essential details with single connection and the flight number-1000. Shall I book the ticket?

USER: Ok, proceed for booking.

ASSISTANT: Your ticket has been confirmed with the flight number-1000.

USER: Thanks for your information.

ASSISTANT: Thank you for choosing us.