You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER:  I am James Nelson. I am planning to spend my holidays with  my parents at NY-LGA. Can you book a ticket from DC-IAD?

ASSISTANT: Can you please share on what dates you are planning to travel?

USER: My  travel dates are 12/31 and 01/02.

ASSISTANT: Let me now how much can you spend for flight ticket.

USER: My budget is 1000.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: We are sorry to inform, there is no flight found with your given details.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for choosing us.