You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me in cancelling my recent reservation?

ASSISTANT: Sure, can I know your name?

USER: I am Christopher Hall.

ASSISTANT: We found your reservation. Shall I cancel it?

USER: Yes, please cancel.

ASSISTANT: Your reservation cancelled successfully.

USER: Thank you.

ASSISTANT: Thank you for reaching us.