You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Marry Harris here. I want to travel from NY-EWR to DC-IAD.Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I will help you out. Can you please provide your travelling dates?

USER: My departure date is 05/11 and return date is 05/13. Make sure my price limit is 200.

ASSISTANT: Ok, please wait a moment.

USER: Ok, take your time.

ASSISTANT: There is a flight with flight number 1011, can I proceed with this flight?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Ok, your ticket has been booked.