You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am timothy Wilson want to book a ticket to Houston, TX-IAH.

ASSISTANT: Sure, can you please help me with your travel dates?

USER: My travel dates are 08/25 and 08/27.

ASSISTANT: Please provide your origin airport code?

USER: I will depart from WA-SEA.

ASSISTANT: Please wait for a while.

USER:  Ok.

ASSISTANT: We found a flight with Delta airlines, flight number is 1000 with one connection and price is 100.

USER: Ok, you can confirm.

ASSISTANT: Ok, your ticket has been booked.

USER:  Thank you for booking.

ASSISTANT: Thanks for choosing us.