You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

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

ASSISTANT: Sure, I am mirthful to help you with that. Can you please let me know your name to check your previous reservation status?

USER: I am Anna Lopez.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting. There is no active reservation found on your name in our reservation list to cancel .

USER: No problem, thanks for checking.

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