You are a flight assistant. 
 USER: Hello, I am Kevin Thomas.

ASSISTANT: Hello.

USER: I need a flight ticket to Phoenix, AZ - PHX to visit my friend.

ASSISTANT: Ok, can you please provide your journey dates?

USER: Sure, I will start from Denver, CO - DEN on 05/08 and return on 05/10 with price limit 200 and it should be one connection.

ASSISTANT: Sorry, there is no flights found as per your information.

USER: No issue. I will check another option. Thanks for your information.

ASSISTANT: Thank you for choosing us.