You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: I am Nancy Rodriguez, I want to cancel my reservation as my grandfather is unwell. Can you please do that for me?

ASSISTANT: Sure, I will help you in cancelling the reservation.

USER: Thank you.

ASSISTANT: Sorry, there are no reservations found in our database.

USER: Not an issue, thank you for checking.

ASSISTANT: Thank you for reaching us.