Hello.
user
Hello.
assistant
Robert Evans here.
user
How may I help you at this moment?
assistant
I want to change my  reservation due to my health issues. Can you please help me?
user
Sure, I am here to help you with that.
assistant
Ok, please check soon. I will be waiting for your response.
user
Please wait for a minute.
assistant
Ok, I am waiting.
user
Sorry to say that, there is no reservation found based on your name in our database.
assistant
Oh! That's fine, thank you for checking anyways.
user
Thank you for reaching us.
assistant
You are most welcome.
user