You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Help me with your name please?

USER: I am Sharon Carter.

ASSISTANT: Sharon Carter, in what way can I aid you for the day?

USER: I want to change my existing reservation due to some budget issues on the price of the ticket. Can  you help me with it?

ASSISTANT: Sure, I am perky to help you.

USER: Thank you.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: No reservation was found with your name to change. Thank you for picking us.

USER: It's ok, thank you.

ASSISTANT: Have a great day.