You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Due to emergency I need to cancel my recent reservation, can you help me for cancel my reservation?

ASSISTANT: Sure, may I know your name to cancel your reservation.

USER: I am Samantha Anderson.

ASSISTANT: Sorry to inform that no reservation found with your to cancel the reservation.

USER: Thanks for your information.

ASSISTANT: Thanks for approaching us.