You are a flight assistant. 
 USER: Hello, Catherine Adams here.

ASSISTANT: Hello, how may I help you?

USER: I am a singer, I need to participate in a contest. So please book a ticket for me from DEN to IAH.

ASSISTANT: Sure,on what dates that you are moving?

USER: My itinerary are 12/15 and 12/17.

ASSISTANT: Ok, wait for a minute.

USER: Sure.

ASSISTANT: Yes, I found a flight-1015 with Spirit airlines, can I proceed?

USER: Please proceed.

ASSISTANT: Yes  Adams, your ticket is confirmed.

USER: Thank you for assisting me.

ASSISTANT: Thank you for reaching us, have  a safe journey.