You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: Help me in changing my flight ticket as I modified my travel dates.

ASSISTANT: Sure, we are here to help you. Can you please help me with your good name?

USER: Susan Campbell here.

ASSISTANT: Sorry, we did not find any active reservation on your name in our records.

USER: Ok, not an issue. Thanks for checking.

ASSISTANT: Thank you for opting us.