You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Karen Walker.

ASSISTANT: How can I aid you Walker?

USER: I want to start new dance training center at Phoenix AZ-PHX, help me in booking my flight ticket from Detroit.

ASSISTANT: Sure, I am here to help you, may I know your travelling dates?

USER: 05/20 to 05/22 are my travelling dates.

ASSISTANT: Could you please help me with your source code?

USER: My source code is MI-DTW.

ASSISTANT: There is a UA 1006 airline with fare of 100 which matches your travelling dates. Shall I proceed with booking?

USER: Yes, please.

ASSISTANT: Your booking has been confirmed on name of Karen Walker.

USER: Thank you so much for your service.

ASSISTANT: Thank you for approaching us.