You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Melissa Turner here.

ASSISTANT: How may I assist you now?

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: Ok, please allow me to check with your previous booking.

USER: Ok.

ASSISTANT: Sorry to say, there is no reservation found under your name.

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

ASSISTANT: Thank you for reaching us, have a great day ahead.