You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: Can you aid me to cancel my reservation due to emergency?

ASSISTANT: Sure, I will help you in cancelling the reservation. May I know your name please?

USER: Gary Thomas here.

ASSISTANT: Sorry, there are no reservations found.

USER: That's ok, thank you for giving the information.

ASSISTANT: Thank you for reaching us.