You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I want to change my reservation, due to heavy rainfall in New York, can you help me?

ASSISTANT: Sure, can you please share your name?

USER: My name is Joshua Hernandez.

ASSISTANT: Please be on hold.

USER: Sure, take your time.

ASSISTANT: Thanks for your time, there is no reservation found on your name in our database to change it.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you.