You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: I want to modify the return journey date in the flight ticket which is booked previously because I have planned for the trip for some more days. Can you please help me to change the details?

ASSISTANT: Sure, I will help you in changing the reservation. May I know your name please?

USER: Thank you for accepting my request and my name is Brandon Allen.

ASSISTANT: Sorry, there are no reservations found in our database.

USER: It's alright, thank you for checking my reservation status and your help.

ASSISTANT: Thank you for reaching us.