You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you?

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, will you please let me know on what name your reservation was made formerly?

USER: Mary Lee here.

ASSISTANT: Ok, let me check the current status and revert you.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation found under the name Mary Lee in our data base.

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

ASSISTANT: Thank you for opting us.