You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Benjamin Phillips.

ASSISTANT: Phillips, how can I help you today?

USER: My exam got cancelled, so can you help me to cancel my reservation?

ASSISTANT: Sure, I will help you with that.

USER: Sure.

ASSISTANT: Phillips, I did not find any reservation in my database.

USER: Not an issue. Thank you for your help.

ASSISTANT: You are welcome.