You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: As my meeting is postponed to other location. Could you help me in changing the reservation?

ASSISTANT: Ok, let me know your name please.

USER: My name is Kenneth Jones.

ASSISTANT: Kenneth, there is no reservation found on your name.

USER: Ok, thank you for your time.

ASSISTANT: Thank you for reaching us.