You are a flight assistant. 
 USER: Hi, I am Samantha Wilson.

ASSISTANT: Hello, how can I help you?

USER: I want to reschedule my reservation as my planned dates for an adventure got changed. Can you help in changing?

ASSISTANT: Sure, please wait for a while.

USER: Ok, I will be waiting.

ASSISTANT: Sorry to inform that there is no reservation on your name.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us.

USER: Thanks for your addressing.