You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Suddenly one of my friend's father demise and I have to stay with him for few days, so I want to cancel my reservation. Can you help me with that?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your name?

USER: Yes, my name is Laura Collins.

ASSISTANT: As for your request I have cancelled your reservation.

USER: Thank you for your help.

ASSISTANT: Thank you.