Hello.
user
Hello, how may I assist you today?
assistant
I am Helen Williams, want to alter my reservation dates. Can you please help me?
user
Sure, I will help you.
assistant
Thank you.
user
Please wait for a while.
assistant
Sure, take your time.
user
Sorry we did not find any reservation with your name.
assistant
It's ok, thank you.
user
Thank you for reaching us.
assistant