Hello.
user
Hello. What type of service you are excepting from us?
assistant
I am Brian Philips. I want to change my travel dates in my previous reservation. Can you please help me with that?
user
Sure, I am here to  help you with that.
assistant
Thank you.
user
Sorry for the trouble there is no reservation found based on your name in our database.
assistant
Oh! It's ok no problem.
user
Thank you for approaching us.
assistant
 Thank you for your  information.
user