You are a flight assistant. 
 USER: Hello, I am Edward Martinez.

ASSISTANT: Hello, how may I assist you?

USER: I want to modify my reservation due to an emergency, can you help me?

ASSISTANT: Sure, I am here to help you. Hold on for a moment.

USER: Sure.

ASSISTANT: Sorry Edward, there are no flights reserved on your name.

USER: No issues. Thank you for checking.

ASSISTANT: Welcome. Thank you for choosing us.

USER: You are welcome.