You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me to cancel my reservation?

ASSISTANT: Sure, may I know your name to check the reservation?

USER: My name is Ruth Phillips.

ASSISTANT: Sorry, there is no reservation with your given name.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for reaching us.