You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Angela King here. I want to cancel my recent reservation due to some issues. Can you please help me in that?

ASSISTANT: Yes, I can help you. Give me a moment.

USER: Sure, take your time.

ASSISTANT: I have cancelled your reservation successfully.

USER: Thank you for your service.

ASSISTANT: Thank you for contacting us.