You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Betty Martinez.

ASSISTANT: How can I assist you, Betty?

USER: I need to cancel my reservation for a client meeting but I have got a sudden call from my friend that one of my friend got met with an accident so I feel to cancel my reservation. Can you please help me out?

ASSISTANT: Sure, please give me a minute.

USER: Sure.

ASSISTANT: Betty, I have successfully cancelled your reservation.

USER: Thank you.

ASSISTANT: Thank you for contacting us.