You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donald Anderson.

ASSISTANT: How can I aid you today?

USER: I need to cancel my recnent reservation, as my exam got cancelled.

ASSISTANT: Sure, I am here to help you. Please wait for a while.

USER: Ok. Ok, no issues.

ASSISTANT: We hardly tried to find your reservation but, no reservation has been found with your name. Thank you for approaching us, have a nice day.

USER: Ok, no worries at all. Thank you for your help.