You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Margaret Allen here. My interview has been postponed, so I want to reschedule my itinerary dates.

ASSISTANT: Sure, I will help you.

USER: Ok.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no active reservation found on your name.

USER: No problem, thank you.

ASSISTANT: Thank you for approaching us.