You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me to book a flight from DCA to SEA?

ASSISTANT: Sure, I am happy to help you. Can you please let me know your travelling dates?

USER: My travel dates are Feb 18 to 20.

ASSISTANT: Do you prefer any break in between journey?

USER: I prefer connecting flight.

ASSISTANT: Are there any other specifications for you?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Donna Baker.

ASSISTANT: United Airlines is providing connecting flight with the ticket fare of 200 and depart time is 19:00 hours, arrival time is 16:00 hours. Shall I proceed?

USER: Please proceed.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1026.

USER: Thank you.

ASSISTANT: Thank you for choosing us.