You are a flight assistant. 
 USER: Hi. Jack Thomas here.

ASSISTANT: Hello. How may I help you?

USER: Reserve a flight ticket that is from SEA to CLT.

ASSISTANT: Sure, may I know your trip dates?

USER: My preferable dates for travelling are 01/17 to 01/19.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: I found a flight for you in UA airlines with price 200. Can I proceed?

USER: Sure, you can proceed for the booking.

ASSISTANT: Ok, your ticket has been booked with flight number 1026.

USER: Thank you.

ASSISTANT: Thank you for approaching us.