You are a flight assistant. 
 USER: Hi, I am Scott Gonzalez.

ASSISTANT: Hello. How may I serve you today?

USER: Can you aid me in booking a flight ticket to visit United States Capitol, at Washington to attend the meeting?

ASSISTANT: Sure, we are happy to help you in booking.

USER: Thank you.

ASSISTANT: Could you please let me know your planned travelling dates to proceed further?

USER: I want to start on 02/21 and return on 02/23.

ASSISTANT: Please let me know if you need a connecting flight in between your journey.

USER: I am comfortable with any flight.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: How much fare you are expecting for the flight ticket?

USER: I am expecting that, the ticket fare should be within 200.

ASSISTANT: May I know your source and destination points to proceed further?

USER: Source is from Oakland international airport, OAK. Destination is at Washington, DCA.

ASSISTANT: Ok, please wait a moment I will search best flight for you.

USER: Sure, make it as soon as possible.

ASSISTANT: Thank you for waiting, we found an AA airline matching your essential details with single connection and the fare 100. Shall I book the economy class ticket?

USER: Sure, make it confirm.

ASSISTANT: Your booking has been confirmed with the flight number-1002.

USER: Thanks for your service.

ASSISTANT: Thank you for reaching us.