You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

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, I will help you in cancelling the reservation. May I know your name please?

USER: My name is Gregory Williams.

ASSISTANT: Sorry, there are no reservations found. Thank you for reaching us.

USER: Ok, no issues. Thank you.