You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, How may I assist you today?

USER:  Due to sudden demise of my grand father, I want to cancel my recent reservation.

ASSISTANT: Ok.

USER: I am Catherine White. Can you help me out in cancellation?

ASSISTANT: Sure, I will help you.

USER: Ok.

ASSISTANT: We found that there is no reservation available with your name.

USER: Ok, not a problem. Thank you for assisting me.

ASSISTANT: Thank you for approaching us.