You are a flight assistant. 
 USER: Hi, I am Dennis Davis.

ASSISTANT: Hello, how may I provide service to you?

USER: I want to travel to Detroit to surprise my parents on their wedding anniversary, can you please book my ticket?

ASSISTANT: Sure, can you please share me your journey dates?

USER: My journey dates are from 09/21 to 09/23.

ASSISTANT: Kindly assign your journey points?

USER: My journey starts from Las Vegas, NV-LAS to Detroit, MI-DTW.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: We found a AA airlines, flight number 1018, 1 stopover with the price of 100. Shall I proceed to booking?

USER: Ok, please book my ticket.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for reserving my ticket.

ASSISTANT: Thank you for choosing us. Have a good day.