You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you?

USER: I am Joshua Evans, book a ticket from IAD to CLT.

ASSISTANT: Please provide your journey dates.

USER: Sure, my travelling dates are from 04/11 and 04/13.

ASSISTANT: Please wait a moment.

USER: Sure, please 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: Please proceed with booking.

ASSISTANT: Ok, your ticket has been booked with flight number 1009.

USER: Thanks for your help.

ASSISTANT: Thank you for reaching us.