You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I'm Amanda Phillips, I have postponed all my meets due to heavy rains.Can you please help to change my existing reservation?

ASSISTANT: Sure, give me a moment.

USER: Ok.

ASSISTANT: Sorry Phillips, there is no flight with your requirement.

USER: Ok, fine.

ASSISTANT: Thank you for contacting us.

USER: Thank you for your information.