You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: As my beer party has been cancelled due to my friends health condition is ill. Help me in cancelling my reservation.

ASSISTANT: Sure, may I know your name.

USER: I am Sarah Brown.

ASSISTANT: Thanks for providing your name, no reservation found with your given name.

USER: Its ok, thank you for your fast response.

ASSISTANT: Thanks for contacting us.