You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: My name is Sharon Lopez. I would like to travel from DEN to IAD.

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

USER: My preferable dates are from 01/25 to 01/27.

ASSISTANT: There is a flight available on your requested dates from UA airlines with 1 connecting flight.

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked with flight 1003.

USER: Thank you for helping me out.

ASSISTANT: You are welcome.