Hi.
user
Hello.
assistant
My name is Rachel Clark.
user
How can I help you?
assistant
Owing to emergency, I need to change my existing reservation. Please help me with that.
user
Please wait a while.
assistant
Sure.
user
Sorry to say, there is no reservation on your name in our database.
assistant
No problem, thanks for your information.
user
Thank you for opting us.
assistant