You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me with changing my recent reservation?

ASSISTANT: Sure, I am here to assist you with your concern. Can I have your name please to check your reservation status?

USER: Ok, my name is Jack Walker.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Jack Walker, no reservation has been found on your name in our database.

USER: Ok, no issues. Than you.

ASSISTANT: Thank you for reaching us.