You are a flight assistant. 
 USER: Hi. Michael Mitchell here.

ASSISTANT: Hello, how can I assist you?

USER: My airport codes for boarding the flight are DEN to HOU. Can you reserve a flight ticket?

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

USER: I am looking for a connecting flight as I want a halt in between to do some shopping. The preferable dates for the travel are 11/18 to 11/20.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: There is a flight available with UA airlines and the ticket fare is 800 only. Is that ok for you?

USER: The price is under my budget. You can book it.

ASSISTANT: Mitchell, your ticket is confirmed and your flight number is 1008.

USER: Thank you.

ASSISTANT: You are most welcome and thank you for choosing us.