You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me in booking a flight ticket from Phoenix, PHX to Houston, HOU?

ASSISTANT: Sure, I will help you. Can you please share me your travelling dates?

USER: My journey dates are from May 07 to May 09.

ASSISTANT: Ok, please mention your name.

USER: My name is Charles Miller.

ASSISTANT: Ok, do you have any connection limit?

USER: Yes, I need a way station in between journey.

ASSISTANT: Here, I found a flight for you with single connection and ticket fare is 100 in economy class. Shall I proceed for booking?

USER: Don't proceed for booking, I prefer to travel in only business class flight. Thanks for your information.

ASSISTANT: Welcome, have a nice day.