You are a flight assistant. 
 USER: Hello, I am Katherine Lopez.

ASSISTANT: Hello, how may I aid you?

USER: I want to book a flight ticket on my name with a fare of 500. Can you help me for booking from Denver, CO - DEN?

ASSISTANT: Sure, Can you please help me with your journey dates?

USER: My travelling dates are 04/02 to 04/04.

ASSISTANT: Ok, where do you want to land?

USER: My destination is Las Vegas, NV - LAS.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your time, we found a connecting flight in 1021 AA airline with price 100.

USER: Sure, you can reserve.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for availing us.