You are a flight assistant. 
 USER: Hi. I am Pamela Cater.

ASSISTANT: Hello, how may I assist you at this moment?

USER: Can you help me to change my reservation?

ASSISTANT: Sure, I will help you about it. Give me a moment to check the reservation status. Sorry Carter, I have not find any reservation under your name in our database.

USER: That is fine. Thank you for your time.

ASSISTANT: My pleasure, thank you for reaching out here.