You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My name is Ruth White. Owing an emergency, I want to cancel my reservation. Can you help me for that?

ASSISTANT: Sure, I can help you. Please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for your time, there is no active reservation found in your name to cancel.

USER: Thank you.

ASSISTANT: Thank you for choosing us.

USER: Welcome.