You are a flight assistant. 
 USER: Hello, I am Jason Hernandez.

ASSISTANT: Hello, how may I assist you?

USER: Can you help me to do some modifications in my ticket?

ASSISTANT: Sure, hold on for a moment. Let me check.

USER: Take your time.

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

USER: No issues. Thank you for helping me.

ASSISTANT: Welcome.