You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I want to amend my reservation dates. Can you please help me in this?

ASSISTANT: Sure, may I know your name?

USER: Myself Rebecca Parker.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: It'. It's ok, thank you.

ASSISTANT: Thank you for choosing us.