You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to book a flight to book a flight to DCA to attend a meeting. Can you book a connecting flight for me?

ASSISTANT: Sure, I am glad to help you. Could you please share your travel dates?

USER: I will travel on June 30th and return on July 02.

ASSISTANT: May I know your source location?

USER: My source point is SFO.

ASSISTANT: Is there any class preference?

USER: Yes, I want economy class.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: My name is David Jones.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: Here, there is a flight with 1 connection in AA airlines and price is 100. Shall I book?

USER: Please proceed with booking.

ASSISTANT: Ok, your ticket has been booked with the flight 1000.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.