You are a flight assistant. 
 USER: Hi, I am Patrick Perez.

ASSISTANT: Hello, how may I oblige you for the day?

USER: I want to book a flight ticket on 09/10 and return on 09/12, can you help me with booking please?

ASSISTANT: Sure, may I know your journey points?

USER: Yes, my airport codes are Detroit, MI-DTW and Phoenix, AZ-PHX.

ASSISTANT: Ok, please wait for a while.

USER:                       Ok.

ASSISTANT: We found an airline Frontier with flight number 1015. Price 200 with a halt.

USER: Please proceed with booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.