You are a flight assistant. 
 USER: Hello. I am Sarah Clark.

ASSISTANT: Hello, how may I help you?

USER: I am planning to visit Korean war veterans memorial in Washington DCA. Can you help me to book a connecting flight?

ASSISTANT: Sure, let me know your departure airport code?

USER: I want to depart from Dallas & Fort Worth, DFW.

ASSISTANT: Are you willing to travel in any particular class?

USER: I am comfortable with any class.

ASSISTANT: Ok, may I know your departure and arrival timings?

USER: I want to return in the evening time.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Ok, please wait a minute.

USER: Sure, Please check the availability of flights in the dates of Feb 20 and 22.

ASSISTANT: We found a flight which return at 1:00 AM of American Airlines in the economy class with single connection in between your journey fare of 100. Can I proceed for booking?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1020.

USER: Thanks for the response.

ASSISTANT: Thank you.