You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Richard Miller. Due to emergency I need to cancel my recent reservation, Can you please help me with that?

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

USER: Thank you. Sure.

ASSISTANT: There is no reservation on your name.

USER: Ok, no problem.

ASSISTANT: Thank you so much.

USER: Thanks for your information.