You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Betty Hill.

ASSISTANT: How can I assist you?

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

ASSISTANT: Ok, give me a minute.

USER: Sure, please check my details.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: That's fine.

ASSISTANT: Thank you for opting us.

USER: Thank you for your time.