You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Debra King.

ASSISTANT: How may I serve you today?

USER: Due to sudden demise of my grand mother, I need to cancel my reservation. Will you help me in cancelling my reservation?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait a moment let me check the reservation list and I will get back to you with the status.

USER: Sure.

ASSISTANT: Thank you for your time.

USER: Ok.

ASSISTANT: We are regret to say that there is no active reservation found with your name.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for opting us. Have a nice day.