You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Donald Garcia.

ASSISTANT: How may I assist you today?

USER: Please cancel my recent reservation as my exam got cancelled.

ASSISTANT: Sure, please wait for a minute.

USER: Thank you.

ASSISTANT: Thanks for your precious time but, your name is not found in the reservation list.

USER: Ok, Not an issue. Thanks for the information.

ASSISTANT: Thank you for choosing us.