You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you please book a flight ticket to New York, LGA?

ASSISTANT: Sure, please forward your travelling dates?

USER: I would like to travel on 11/04 and return on 11/06.

ASSISTANT: Where would you start your journey?

USER: I have to start from Washington, DCA to attend live concert.

ASSISTANT: May I know your good name please?

USER: I am Andrew Scott.

ASSISTANT: We found a connecting flight with fare of 100 in Delta airline.

USER: Ok.

ASSISTANT: Shall I proceed for booking?

USER: You can proceed to book.

ASSISTANT: Your ticket has been booked.

USER: Thank you for assisting me.

ASSISTANT: Thanks for opting us.