You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I want to cancel my existing reservation due to an emergency. Can you aid me?

ASSISTANT: Sure, I will help you with that. Please provide your name.

USER: Sure, I am Rebecca Miller.

ASSISTANT: Please give me a moment.

USER: Take your time.

ASSISTANT: Thanks for waiting, there is no reservation found under your name.

USER: No issues. Thank you for checking.

ASSISTANT: Welcome, have a great day.