You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

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

ASSISTANT: Sure, may I know your name please?

USER: My name is Richard Garcia.

ASSISTANT: Please be on hold.

USER: Ok.

ASSISTANT: Thanks for your time. Sorry, there is no active reservation in your name.

USER: No issue, thank you for the information.

ASSISTANT: Thank you.