You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Kenneth Phillips.

ASSISTANT: How may I oblige you today?

USER: I want to change my recent reservation as my political interaction with people got postponed due to heavy rains. Can you please help me out?

ASSISTANT: Sure, I'll help you in changing an existing reservation.

USER: Thank you for considering my request.

ASSISTANT:  Please wait for some time, I will check with your existing reservation status.

USER: Ok.

ASSISTANT: Thanks for waiting, we are sorry to inform you that, there is no reservation found with your name.

USER: Ok, no issues.

ASSISTANT: Thanks for approaching us.

USER: Thank you for your quick response.