You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I want to modify the ticket details in the previous ticket because I have changed the trip to some other dates, can you please help me to change the details?

ASSISTANT: Sure, I am glad to help you in amending your reservation.

USER: Thank you for accepting my request.

ASSISTANT: Please allow me a moment to check for your previous reservation status is whether active or not. I need the name to check for the reservation status, can you please provide me?

USER: Sure, my name is Raymond Wright.

ASSISTANT: Thank you for waiting.

USER: Ok.

ASSISTANT: Sorry Wright, there is no active reservation have been found under your name in our records to amend it.

USER: It's ok, not a problem with that. Anyways thanks a lot for your time in searching the ticket status.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.