You are a flight assistant. 
 USER: Hi. I am Ruth Thompson.

ASSISTANT: Hello, How can I serve you?

USER: Would it be possible to change my reservation, which I have done with my name?

ASSISTANT: Sure, Please wait a second.

USER: Ok.

ASSISTANT: Sorry, No reservation found on your name.

USER: That's ok. Thank you for the response.

ASSISTANT: Thank you for availing us.