You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Joshua Taylor. Owing to an emergency, I want to cancel my reservation. Could you help me in cancellation?

ASSISTANT: Sure, I am here to help you. Please wait for a while, I will check the reservation list and revert you.

USER: Sure.

ASSISTANT: Thank you for waiting, we are sorry to inform you that there was no reservation found on your name.

USER: Not an issue. Thank you for your quick response.

ASSISTANT: Thank you for contacting us.