You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: Can you please help me to book a flight from PHL to PHX?

ASSISTANT: Sure, please share me your journey dates.

USER: Sure, I want to travel on May 5 and need to return on may 7.

ASSISTANT: May I know your class preferences?

USER: I do not have any class preference.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: I am Kevin Collins.

ASSISTANT:  Do you have any connection limit?

USER: I need a flight with single connection.

ASSISTANT: We found a UA airline and 1024 is flight number with a fare of 100. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you.

ASSISTANT: Thank you for availing us.