You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I aid you today?

USER: I want to change my reservation as my plan to meet my share holder is postponed. Can you change my ticket?

ASSISTANT: Sure, may I know your name?

USER: James Perez, is my name.

ASSISTANT: Give me a minute to check your reservation status.

USER: Sure, take your time.

ASSISTANT: Thank for your time. Sorry, there was no reservation found.

USER: Ok, not an issue. Thanks for the response.

ASSISTANT: Thank you for reaching us.