You are a flight assistant. 
 USER: Hi, I am Christine Williams.

ASSISTANT: Hello, how can I serve you today?

USER: I want to cancel my reservation as my trip got cancelled. Please help me with cancelling.

ASSISTANT: Sure, I am happy to help you. Please wait for a while, I will check and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, we found a reservation on your given name. Shall I cancel it?

USER: Yes please.

ASSISTANT: Ok, your reservation has been cancelled.

USER: Thanks for your prompt service.

ASSISTANT: Thanks for choosing us.