You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I support you?

USER: I am Carol Brown, and I would like to book a flight ticket.

ASSISTANT: Sure, May I know your travelling details?

USER: Sure, my departure is from NY-JFK, to destination NewYork, NY-EWR.

ASSISTANT: OK, To proceed further, Can you please provide your journey dates?

USER: I would like to travel from Jan 25 to Jan 27, can you please make sure that my price limit is 500.

ASSISTANT: Sure, Please wait for a moment.

USER: OK.

ASSISTANT: Thank you for being patient. Sorry, No flights were found with your given details.

USER: OK. Thank you for your valuable information.

ASSISTANT: Thank you for choosing us.