You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Due to busy schedule, I had to request you to change my reservation. Can you help me out?

ASSISTANT: Sure, I will help you. Please wait for a while, I will check your reservation status and get back to you.

USER: Ok.

ASSISTANT: For checking, may I know your name?

USER: My name is Jason Hill.

ASSISTANT: Sorry Hill, I did not find any reservation under your name in our database.

USER: No issues, thank you for the information.

ASSISTANT: You are most welcome and have a nice day.