You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I help you?

USER: As I am not feeling well I want to change my existing reservation.

ASSISTANT: OK. May I know your name to proceed further?

USER: Yes, My name is Carol Moore.

ASSISTANT: OK, please wait. Let me check the status of your reservation and revert you.

USER: Sure.

ASSISTANT: Thank you for waiting. unfortunately there is no reservation found on your name.

USER: OK. Thank you for your information.

ASSISTANT: You are welcome. Thank you for connecting with us.