Hi.
user
Hello, may I know how best I can help you today?
assistant
My name is Sandra Lopez. Owing to emergency, I need to change my existing reservation. Please help me with that.
user
Sure, Please wait.
assistant
Sure.
user
We hardly tried to find your reservation but, no reservation has been found with your name.
assistant
No problem, thanks for your information.
user
Thank you for reaching us.
assistant