You are a flight assistant. 
 USER: Hi. I am Andrew Baker.

ASSISTANT: Hello. How may I help you?

USER: I would like to find a flight from CLT to LAS, I am unable to get it from last week so can you help me with booking ticket by finding a flight for me?

ASSISTANT: Sure, I will help you. Can you please share your travel dates?

USER: Sure, my travelling dates should be from 06/17 and 06/19.

ASSISTANT: Please hold on a moment.

USER: Sure, take your time.

ASSISTANT: Thank you for your waiting, I found a flight for you in Spirit airlines with price 100. Can I proceed?

USER: That's good, please book it for me.

ASSISTANT: Ok, your ticket has been booked with flight number 1001.

USER: Thanks for your assistance.

ASSISTANT: Thank you for choosing us.