You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am looking for changing my reservation due to sudden health issue, can you please help me out with that?

ASSISTANT: Sure, can I know your name please to check the reservation status?

USER: Thank you for accepting my request, I have reserved on the name of Linda Smith.

ASSISTANT: Ok, wait a moment please.

USER: Sure, take your time.

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

USER: Oh! I think the ticket was not reserved properly while I am booking.

ASSISTANT: Thank you for approaching us.

USER: Thank you for checking anyways.