You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

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 am here to help you.

USER: Thank you for accepting my request.

ASSISTANT: Please wait. May I know your name please?

USER: My name is Jerry Collins.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: It's ok, not a problem with that. Anyways thank you for checking the ticket status.

ASSISTANT: Thank you for reaching us.