You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Larry Johnson.

ASSISTANT: How can I help you?

USER:  I am planning to travels from JFK to IAD for a business meeting, can you please help me with booking a flight ticket?

ASSISTANT: Could you please provide your travelling dates?

USER: Sure, my departure date is on 04/07 and the return date is on 04/09. Please make sure that the price limit should not exceed 1000.

ASSISTANT: There is a flight available with price 100 and flight number 1000, would you like to proceed?

USER: Yes, please.

ASSISTANT: Your booking is confirmed.

USER: Thank you for your help.

ASSISTANT: You are welcome.