You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

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

ASSISTANT: Sure, I am happy to help you with that. Please wait a moment.

USER: Thank you for accepting my request, I will wait fort your response.

ASSISTANT: Sorry Virginia Johnson, no reservation has found under your name to change.

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