You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I best oblige you.

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

ASSISTANT: Sure, may I know your good name to check the reservation on your name?

USER: Christine Carter is my name.

ASSISTANT: Please wait for a couple of moments.

USER: Sure.

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

USER: Ok, no issue. Thanks for your response.

ASSISTANT: Thank you for availing with us.