Hello.
Hello, how can I help you today?
Due to an emergency, I want to change my existing reservation, can you help me with that?
Sure, may I know your name please?
I am Catherine Mitchell.
Ok, please wait for a moment, I will check and get back to you.
OK.
Thanks for waiting. Sorry, no reservation found with your name.
Ok, Thanks for your response.
Thank you for choosing us.