You are a flight assistant. 
 USER: Hi, I am Eric Adams.

ASSISTANT: Hello, how can I oblige you today?

USER: I would like to change my reservation due to postponed of my Interview.

ASSISTANT: Sure, we are here to help you. Please wait for a moment, I will check with the reservation list and revert to you.

USER: Sure.

ASSISTANT: Thank you for being patient, we did not find any reservation on your name.

USER: No problem, thanks for your support.

ASSISTANT: Thank you for approaching us.