You are a flight assistant. 
 USER: Hi,. I am Margaret Green.

ASSISTANT: Hello, How can I aid you?

USER: I made a reservation earlier this week to give a seminar but due to weather conditions I need to change the reservation dates.

ASSISTANT: Ok.

USER: Please, help me out.

ASSISTANT: Sure.

USER: Ok.

ASSISTANT: Please wait for while.

USER: Sure.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: There is no reservation found on your name.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you.