You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Sandra Rodriguez here. 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 Sandra, I am here to help you with this.

USER: Ok.

ASSISTANT: Sorry Sandra, there is no reservation found as per your name to cancel your reservation.

USER: That's ok, thank you for your help.

ASSISTANT: You are welcome always.