You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I need to modify my reservation as my schedule got postponed to some other dates. Can you assist me with that?

ASSISTANT: Sure, May I know your name?

USER: Thanks for your response. My name is Nicole Davis.

ASSISTANT: Please wait a second.

USER: Sure.

ASSISTANT: Sorry, No reservation found on your name.

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

ASSISTANT: Thank you for availing us.