You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best can I assist you today?

USER: Can you help me to cancel the reservation I had done recently for my brother?

ASSISTANT: Sure, can I know your good name?

USER: Ok, please check for the name Donna Moore.

ASSISTANT: Please wait for a moment.

USER: Ok, please take your own time.

ASSISTANT: Thank you for waiting, there is no active reservation found with the given name.

USER: Ok, that is not a problem. Thank you for assisting me.

ASSISTANT: Thank you for availing with us.