You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I'm Janet Rodriguez. My trip has been postponed, can you change my reservation?

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Sorry no reservation found on your name Janet Rodriguez.

USER: It's fine.

ASSISTANT: Thank you for contacting us.

USER: Thank you for your immediate response.

ASSISTANT: You are welcome.