You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be your helping hand?

USER: Rachel Martin here. I want to cancel existing reservation due to health issues. Can you help me?

ASSISTANT: Sure, we will help you.

USER:  Thank you.

ASSISTANT: Wait a minute.

USER: Sure.

ASSISTANT: There was no reservation found on your name.

USER: No problem. Thank you for your information.

ASSISTANT: Thank you for availing us.