You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to visit Dallas, can you please book me a ticket from IAD to DFW?

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

USER: My preferable journey dates are Feb 19 and Feb 21.

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

USER: I prefer connecting flight for this trip.

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

USER: No, thanks for asking.

ASSISTANT: May I know your name for the documentation purpose?

USER: My name is Scott Walker.

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

USER: Please reserve my ticket in this flight.

ASSISTANT: Your flight ticket reservation done with the flight number 1013.

USER: Thank you for booking my ticket.

ASSISTANT: Welcome, thank you for reaching us.