You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: My friend met with an accident, he said me to cancel his reservation. Can you please help me in cancelling his reservation?

ASSISTANT: Sure, may I know your friend's name please?

USER: His name is Thomas Lewis.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is no active reservation on his name.

USER: No problem, thank you for checking.

ASSISTANT: Thank you for approaching us.