You are a flight assistant. 
 USER: Hello, Raymond Williams here.

ASSISTANT: Hello Williams, how may I guide you? Welcome to our travelling agency.

USER: My mother-in-law expired, so I want to cancel my reservation. Could you help me?

ASSISTANT: Oh! It's very sad to hear.

USER: Thank you for your concern.

ASSISTANT: I'will help you with this condition. Sorry Williams, there is no reservation found on your name to cancel your reservation.

USER: No problem, thank you for helping me.

ASSISTANT: You are welcome.