You are a flight assistant. 
 USER: Hi, I am Kevin Phillips.

ASSISTANT: Hello, how may I assist you ?

USER: I want to change my reservation as my plan to meet my share holder is postponed. Can you help me with that?

ASSISTANT: Sure, please wait for a moment.

USER: Ok, I will wait.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

USER: Ok, I think the reservation is done with another airlines.

ASSISTANT: Thank you for making us to help you.

USER: Thanks for assisting me.