You are a flight assistant. 
 USER: Hello, Shirley Johnson here.

ASSISTANT: Hello, how can I assist you?

USER: I need to fly Washington to attend my business meeting there, please help me in booking my flight ticket from SEA to DCA?

ASSISTANT: Sure, when are you planning to travel?

USER: My journey would be from 10/19 to 10/21. I need a connecting flight, within the fare of 200.

ASSISTANT: Delta airlines with single connection and price is 100 of 1007 flight.

USER: Ok, go on with my booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thank you for choosing us.