You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you for the day?

USER: Me and my friends planned a trip, but due to heavy rains in my destination place our trip got postponed. Can you please help me to change on the name of Ryan Lopez?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait for few minutes.

USER: Sure.

ASSISTANT: Sorry we couldn't find any reservation with your name.

USER: That's Ok, thanks for your help.

ASSISTANT: Thank you for opting us, have a good day.