You are a flight assistant. 
 USER: Hello. I am Jerry Wilson.

ASSISTANT: Hello. How can I aid you?

USER: I want to change my reservation, due to some health issue. Can you please help me out?

ASSISTANT: Sure, I am here to help you with that.

USER: Thank you.

ASSISTANT: Please, wait for a while.

USER: Sure, I will wait for your information.

ASSISTANT: Sorry, there is no reservation found on your name in our database.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for reaching us.