You are a flight assistant. 
 USER: Hello.

ASSISTANT: Please let me know, what kind of service your looking for?

USER: I want to cancel my reservation due to heavy rains at my destination place, so please help me.

ASSISTANT: Sure, we are happy to help you. Please mention your good name.

USER: Thank you. Sure, I am Joshua Rodriguez.

ASSISTANT: We found your reservation, shall I cancel it?

USER: Sure.

ASSISTANT: Your ticket is cancelled successfully.

USER: Thank you for helping me.

ASSISTANT: Thank you for opting us.