You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. In which way I can assist you today?

USER: Owing to an emergency, I need to cancel my reservation. Can you please help me with that?

ASSISTANT: Sure, I will help you with that. Can I know your name to check your previous reservation?

USER: I am Donna Wilson.

ASSISTANT: Please be on hold.

USER: Ok.

ASSISTANT: We regret to inform you that, there is no reservation found on your name in our records.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching to our services, hope you have a great day.