You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Anna Martin, 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, let me go through the reservation list and get back to you.

USER: Sure, I will be wait for your response.

ASSISTANT: Thanks for waiting, there is no reservation found by your name in our data base.

USER: Not an issue with that, anyways thank you for the information.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.