You are a flight assistant. 
 USER: Hello, I am Elizabeth Harris.

ASSISTANT: Hello.

USER: Owing to an emergency, I need to cancel my reservation. So, please help me in doing that.

ASSISTANT: Elizabeth Harris, I will help you. Please standby.

USER: Sure.

ASSISTANT: Thank you for your patience. You have no reservation found with your name.

USER: Ok, thank you.

ASSISTANT: Thank you for picking us.