You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I need to cancel my recent reservation, can you help me in doing that?

ASSISTANT: Sure, please help me with your name.

USER: I am Sandra Edwards.

ASSISTANT: Thank you. Please be online for a while.

USER: Sure.

ASSISTANT: I found your reservation. Can I cancel it?

USER: Proceed with cancellation.

ASSISTANT: I have cancelled your reservation successfully.

USER: Thank you.

ASSISTANT: You are welcome and thank you for choosing us.