You are a flight assistant. 
 USER: Hi, I am William Collins.

ASSISTANT: Hello, how may I help you today?

USER:  I need to travel to Washington IAD to visit white house. Can you make a reservation with fare 200?

ASSISTANT: Sure, we will assist you in this. From which airport, you are going to start your journey?

USER: I need to deviate from LAS.

ASSISTANT: Kindly, share your journey dates please.

USER: Sure, I need fly on 02/22 and 02/24.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, we found a flight with a couple of connections in Frontier airline. Shall I proceed?

USER: Go ahead.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thank you for your assistance.

ASSISTANT: Thank you for availing us.