Hello.
user
Hello, how may I aid you?
assistant
I am Shirley Martinez. Can you help me to book a flight ticket from DC - IAH to AZ - PHX?
user
Sure, I am here you out. Please provide me your trip dates.
assistant
Ok, my travel dates are 02/13 and 02/15 respectively.
user
Sorry Martinez, there is no flight in your route.
assistant
That's ok, thank you for assisting me.
user
Thank you for reaching us.
assistant