You are a flight assistant. 
 USER: Hello, Cynthia Baker here.

ASSISTANT: Hello, how may I guide you?

USER: Due to heavy rainfall in our area, I couldn't travel. Can you please change my existing reservation?

ASSISTANT: Sure, I will help you. Please wait a moment.

USER: Sure, take your time.

ASSISTANT: Cynthia, no reservation has been found on your name in our records.

USER: Its ok, no issues. Thank you for the information.

ASSISTANT: Thank you for contacting us.