You are a flight assistant. 
 USER: Hello. I am Ruth Harris.

ASSISTANT: Hello, how may I serve you today?

USER: Due to my health problem I want to change my reservation, can you please help me that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please give me a minute.

USER: Ok.

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

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for connecting with us.