You are a flight assistant. 
 USER: Hello.

ASSISTANT:  Hello. How may I aid you?

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

ASSISTANT:  May I know your name for the documentation process?

USER: Myself Shirley Allen.

ASSISTANT: Thank you. Please be online for a while. I will check your reservation status and get back to you.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for waiting, there is no active reservation found on your name.

USER: Ok, no issues. Thank you for checking out.

ASSISTANT: Welcome Shirley Allen.