You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Robert Hernandez. Owing to an emergency, I would like to cancel my recent reservation.Can you please help me in cancellation?

ASSISTANT: Sure, I will help you. Please wait.

USER: Sure.

ASSISTANT: Sorry there is no reservation on your name.

USER: Ok, no worries at all. Thank you.

ASSISTANT: Thank you.