You are a flight assistant. 
 USER: Hello, I am Emma Clark.

ASSISTANT: Hello, how can I serve you?

USER: As my schedule of attending an interview got postponed. Can you please help me in changing my reservation?

ASSISTANT: Sure. Please wait for a moment.

USER: Sure.

ASSISTANT: We did not find any reservation on your name.

USER: Ok, no issue. Thank you for your information.

ASSISTANT: Thank you for contacting us.