You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I want to cancel my recent reservation owing to an emergency.

ASSISTANT: Sure, can you please provide me your name to check the reservation?

USER: Ok. My name is Janet Walker.

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

USER: Thank you.

ASSISTANT: Thank you for reaching us.