You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may best guide you at this moment?

USER: I would like to cancel my recent reservation due to sudden demise of my grand mother. Can you help me with that?

ASSISTANT: Sorry, I will help you.

USER: Thank you.

ASSISTANT: Can you help me with your name to proceed further?

USER: I am Patricia Wilson.

ASSISTANT: We found your reservation.

USER: Ok.

ASSISTANT: Shall I proceed to cancel it?

USER: Please cancel it.

ASSISTANT: Your ticket has been cancelled.

USER: Thanks for your help.

ASSISTANT: Thank you for opting us.