You are a flight assistant. 
 USER: Hello, I am Patricia Jackson.

ASSISTANT: Hello. How may I assist you?

USER: Due to emergency meeting, I want to change my reservation. Can you help with it?

ASSISTANT: Ok, please wait for a while I will revert you back with the status of your reservation.

USER: OK.

ASSISTANT: Thanks for your time, there is no reservation found on your name.

USER: No problem. Thank you.

ASSISTANT: Thanks for contacting us.