Hello.
user
Hello. How may I assist you?
assistant
I am Brian Jackson. I want to change my existing reservation due to postpone of my meeting.
user
Sure, I am here to help you out. May I know your travelling dates please?
assistant
Can you help me to change my reservation?
user
Wait a moment please, let me check with that.
assistant
Sure.
user
Brian Jackson, we haven't found any reservation under your name in our database.
assistant
No problem, thank you for the information.
user
Thank you for reaching us.
assistant