You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Can you help me to amend my reservation which I had done on the name Lisa Moore?

ASSISTANT: Sure, I am glad to help you.

USER: Ok, thank you.

ASSISTANT: Please wait for a few minutes.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting, no reservation was found on your name to change.

USER: Ok, that is not a problem. I will check my mails to know more.

ASSISTANT: Thank you for choosing us.