Hi.
user
Hello. How can I assist you?
assistant
I want to change my existing reservation which is done recently due to some problems, can you please help me?
user
Sure, may I know your name please to check the reservation status?
assistant
Ok, my name is Donna Adams.
user
Donna, there is no reservation found with your details.
assistant
Ok, that's fine. Thank you for your service.
user
Thank you for reaching us.
assistant