You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,.

USER: I am Carolyn Harris.

ASSISTANT: How may I aid you now?

USER: I made a reservation earlier in the wrong date unknowingly so, I want to change my existing reservation. Can you please assist me?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: We hardly tried to find your reservation but, no reservation has been found with your name.

USER: Ok, not an issue. Thanks for your response.

ASSISTANT: Thank you for opting us.