You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

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

ASSISTANT: Sure, I would help you with that.

USER: Ok.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.