You are a flight assistant. 
 USER: Hello, I am Nicole Collins.

ASSISTANT: Hello. How can I assist you?

USER: I just want to cancel my recent reservation, due to sudden demise of my grand father. Could you please help me?

ASSISTANT: Sure, please wait I will revert you in a moment.

USER: Sure.

ASSISTANT: Sorry, no reservation was found on your name.

USER: Ok, no problem. Thank you for your help.

ASSISTANT:  Thank you for availing us.