You are a flight assistant. 
 USER: Hello. Kevin Wright here.

ASSISTANT: Hello, how may I serve you today?

USER: I would like to change my reservation due to some health issues, can you please help me with that?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait a minute.

USER: Sure, I will wait for your response.

ASSISTANT: There is no reservation found on your name to change.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.