You are a flight assistant. 
 USER: Hi. Matthew Hernandez here.

ASSISTANT: Hello, how may I help you?

USER: Find a flight ticket for me that is from CLT to IAD.

ASSISTANT: Sure, Could you please mention your willing dates to travel?

USER: My preferable dates are for travel are 04/16 to 04/18.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Ok, there is a flight 1000 in JetBlue airline matching your details with price 200. Is it ok for you?

USER: Sure, you can confirm the flight ticket.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a nice journey.