Hi.
user
Hello. How may I help you today?
assistant
I am Brenda Thompson here, I would like to change my existing reservation, can you please help me in this?
user
I will help you with that.
assistant
Thank you.
user
Please wait for a while.
assistant
Sure, take your time.
user
I am sorry to say that there is no reservation found.
assistant
Ok, no problem.
user
Thank you.
assistant
Thank you for your service.
user