You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you at this moment?

USER: Robert King here. I want to travel from Washington to Boston for attending a seminar. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I am here to book a flight ticket.

USER: Thanks for that.

ASSISTANT: Can you please share your take off and landing airport codes?

USER: My airport codes are from IAD to BOS.

ASSISTANT: OK, provide your preferred travelling dates?

USER: My travelling dates are from 03/14 to 03/16. Make sure my price limit is 500.

ASSISTANT: We found a AA airline with fare of 200 and a halt in between the journey. Shall I proceed with booking?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Your ticket has been confirmed with flight number 1016.

USER: Thanks for helping me.

ASSISTANT: Thank you for connecting with us.