You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: My friend told me to cancel her reservation, can you please help me to cancel her reservation?

ASSISTANT: May I know your name?

USER: Her name is Ruth Collins.

ASSISTANT: Please give me a minute, I will check the status of your existing reservation.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: No problem, thank you for checking.

ASSISTANT: Thank you for contacting us, have a nice day.