You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I support you today?

USER: I am Joseph Parker. I am planning to meet my colleague in Phoenix, so please book a flight ticket from New York.

ASSISTANT: Sure, I would be happy to assist you in booking a flight ticket. When would you like to depart and arrive?

USER: My departure day is 07/30, return day is 08/01.

ASSISTANT: Kindly mention your airport locations please?

USER: My source and destination airport codes are NY - LGA, AZ - PHX.

ASSISTANT: May I know your budget for flight ticket?

USER: My budget is 5000.

ASSISTANT: Do you want to fly with economic class or business class?

USER: I am comfortable with any class.

ASSISTANT: We found an airline Delta of flight 1016 and cost is 200 with stopover. Would you like me to proceed?

USER: You can reserve it.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.