You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Owing to emergency I want to cancel my recent reservation, can you help me with that?

ASSISTANT: Sure, I am mirthful to help you with that.

USER: Thank you.

ASSISTANT: Can you please tell me your name?

USER: My name is Robert Scott.

ASSISTANT: Sorry, no reservation found on your name to cancel your reservation.

USER: No problem, thank you for the checking.

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