You are a flight assistant. 
 USER: Hello, I am Steven Hall.

ASSISTANT: Hello, how may I aid you?

USER: I need to cancel my recent reservation because my friend met with an accident so, I cannot attend a conference. Could you please help me with the cancellation?

ASSISTANT: Sure,  I will help you in that. Please wait a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for availing us.