You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you for today?

USER: I'm Shirley Edwards. I am planning to attend live concert at Phoenix, can you please help me with booking a flight ticket?

ASSISTANT: Sure, may I know your price limit to book a ticket?

USER: My price limit is 500.

ASSISTANT: Ok, what dates would you like me to book this ticket for?

USER: I would like to take off on 11/23 and the return date is 11/25.

ASSISTANT: Noted, kindly share your airport codes you want to travel.

USER: My origin airport code is OAK and the destination airport code is PHX. Please make sure that the connection limit is 0.

ASSISTANT: Sorry to say, there are no direct flight found on your dates.

USER: Ok, no issues.Thank you for checking.

ASSISTANT: Thank you for contacting us, have a nice day .

USER: You are welcome.