You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your name?

USER: I am planning to attend my uncle's snooker's competition in DFW from PHL. Can you find a ticket for me?

ASSISTANT: Sure.

USER: Yes, I am Katherine Miller.

ASSISTANT: Katherine, please provide your travel dates.

USER: OK, my journey dates are 12/31 to 01/02.

ASSISTANT: Let me check, please wait for a moment.

USER: Ok, make sure that the connection limit is 1. And the price is 500. Sure.

ASSISTANT: Sorry, no flight's found as per your preferences. Do you have other preferred dates?

USER: No, thank you for your information.

ASSISTANT: Thank you for approaching us.

USER: You are welcome.