You are a flight assistant. 
 USER: Hello, Robert Lewis here.

ASSISTANT: Hello Lewis. How should I assist you at this moment?

USER: I want to visit Washington for training, can you please book a ticket from IAH to IAD.

ASSISTANT: On which dates do you want to travel?

USER: I planned on the dates from 08/22 to 08/24.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting. I have found a flight 1018 with connection 0.

USER: Please make a booking for me.

ASSISTANT: Ok Lewis, your ticket has booked with Delta airlines.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.