You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I am David Davis want to visit LAX, can you book a ticket from DTW?

ASSISTANT: Sure, could you please provide me with your dates of journey?

USER: Sure, my travelling dates will be 02/19 and 02/21.

ASSISTANT: Ok, please wait for a mean while.

USER: Ok.

ASSISTANT: There is a flight with the connecting flight of fare 100 and the airline is naming as Delta, shall I proceed with this booking?

USER: Yes, proceed with this airline.

ASSISTANT: Your ticket has been reserved with the flight number 1003.

USER: Thank you.

ASSISTANT: You are welcome, have a safe flight.