You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I be of your service?

USER: I would like to cancel my reservation due to sudden demise of my great grandmother.Can you help me with it?

ASSISTANT: Sure, can you please provide me your name to check your reservation status?

USER: Carolyn Roberts is my name.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we did not found any reservation with this name.

USER: Ok, thank you for the information.

ASSISTANT: You're welcome. Have a nice day.