You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, welcome to Google agency.

USER: My name is Mary Parker.

ASSISTANT: What can I do for you Mary?

USER: I want to travel from LAX to DTW to attend my business meeting. Will you please help me in booking my ticket?

ASSISTANT: Sure, I can help you. Please provide the departure and arrival dates?

USER: The dates of travel are from 04/19 to 04/21.

ASSISTANT: There is a flight available with Delta airlines which matches with your preferences. May I proceed with booking?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been booked and the flight number is 1029.

USER: Thank you for helping me out.

ASSISTANT: Thank you, have a safe flight.