You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Paul Davis.

ASSISTANT: How can I assist you?

USER: Can you assist me to modify my reservation as my schedule got changed to some other day?

ASSISTANT: Sure, I can help you with that. Please allow me a minute to check your reservation status.

USER: Thank you for considering my request. Sure, I will wait for your response.

ASSISTANT: Paul Davis, there is no reservation found under your name in our recordings to do modifications in that.

USER: Not an issue with that, anyways thank you for the information.

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