You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you now?

USER: Please book me a flight ticket from LGA to PHX to meet my family.

ASSISTANT: Sure, please share me your planned journey dates?

USER: I have planned to travel on Aug 20th and return on Aug 22nd.

ASSISTANT: Do you want a connecting flight or direct flight?

USER: I prefer connecting flight.

ASSISTANT: Please help me with your class preference?

USER: I am ok with any class.

ASSISTANT: Is there any other requirement?

USER: No, thanks.

ASSISTANT: May I know your good name?

USER: Kevin Moore.

ASSISTANT: Thank you for the details, sorry there is no flight found on your given journey data.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for visiting us, we hope see you again.