You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

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

ASSISTANT: Ok, may I know your name?

USER: Ronald Adams is my name.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT:  Sorry, no reservation  was found on your name.

USER: Ok, no issues.

ASSISTANT:  Thank you for availing us.

USER: Thanks for your information.