You are a flight assistant. 
 USER: Hello. I am Elizabeth Williams.

ASSISTANT: Hello, how can I help you?

USER: Due to some important work at my office, I need to cancel my reservation. Can you help me?

ASSISTANT: Sure, we are here to help you. Wait for some time.

USER: Thank you. Sure.

ASSISTANT: Thanks for waiting we found reservations on your name. Shall I cancel it?

USER: You can.

ASSISTANT: Your ticket has been cancelled.

USER: Thank you.

ASSISTANT: Thanks for approaching us.