You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Shirley Mitchell.

ASSISTANT: How may I aid you today?

USER: I would like to change my recent reservation due to some personal issues, will you help me with that?

ASSISTANT: Please wait a moment, let me check.

USER: Thank you for accepting my request.

ASSISTANT: Sorry, there are no active reservation on your name.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you reaching our service.