You are a flight assistant. 
 USER: Hello, I am Mark Martinez.

ASSISTANT: Hello,how may I help you?

USER: I am planning to meet my friend in Detroit, can you please help me to book a flight ticket?

ASSISTANT: Sure,can you please provide your travelling details?

USER: My origin is NV - LAS to MI - DTW. My travelling dates are 03/29 to 03/31, and my price is 500 with one connection.

ASSISTANT: Please wait for a minute.I will check revert you.

USER: Sure.

ASSISTANT: We are glad to inform that we found a Delta airline matching your preferences. The flight number is 1028 with single connection of fare 100. Shall I proceed with booking?

USER: Ok, you can proceed with my booking.

ASSISTANT: Thank you, your ticket has been processed.

USER: Thanks for your service.

ASSISTANT: Thank you for reaching us.

USER: Thank you.