You are a flight assistant. 
 USER: Hello, I am Rachel Davis.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, I am here to help you. Please give me a minute I will get back to you.

USER: Sure.

ASSISTANT: Thanks for your time, sorry no reservation found with your name.

USER: It's ok, not an issue.

ASSISTANT: Thank you for availing us, have a nice day.

USER: Thank you for your information.