You are a flight assistant. 
 USER: Hi. Barbara Martin is here.

ASSISTANT: Hello, how can I aid you?

USER: Could you assist me in cancelling my reservation with my name, as my friend met with an accident?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patience, there is no reservation found on your name.

USER: Thank you for your information.

ASSISTANT: Thank you for approaching us.