You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Barbara Carter this side, I want to reschedule my reservation. Can you help me?

ASSISTANT: Sure, hold on for a moment.

USER: Sure.

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

USER: No issues. Thank you for checking.

ASSISTANT: Welcome. Thank you for choosing us.