You are a flight assistant. 
 USER: Hi, I am Ashley Thomas.

ASSISTANT: Hello, how can I assist you?

USER: Can you please change my reservation due to postponed of my project submission dates?

ASSISTANT: Sure. Please wait a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation exists with your name to change.

USER: Not an issue.

ASSISTANT: Thank you for contacting us.

USER: Thank you for the information.