You are a flight assistant. 
 USER: Hello, I am Rachel Young.

ASSISTANT: Hello,. How shall I help you?

USER: I want to visit Rockefeller center at New York, can you please help me?

ASSISTANT: Sure. Please provide your travelling dates?

USER: My travel dates are from 02/01 to 02/03.

ASSISTANT: May I know departure and return location codes.

USER: My source and destination airport codes are IAH and LGA. I need a single connection.

ASSISTANT: Ticket price limit?

USER: I need a ticket within the price 5000.

ASSISTANT: I'm sorry, there is no flight available.

USER: Ok, no problem.

ASSISTANT: Thanks.