You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you today?

USER: I am planning to attend music concert at DCA, can you please help me with booking a flight ticket from PHX?

ASSISTANT: Sure, may I know your name please?

USER: My name is Edward Phillips.

ASSISTANT: Could you please share your planned travelling dates?

USER: Sure, I would like to take off on July 09 and return on July 11.

ASSISTANT: Do you need a break in between your journey?

USER: I need a flight with 1 connection. I need a direct flight.

ASSISTANT: Kindly share your class preference.

USER: I prefer business class.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform you that there are no flights found with your essential details.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for approaching.

USER: You are welcome.