You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am Jessica Rodriguez from Washington. I need to change my reservation which I have done last week as my destination location got changed just now.

ASSISTANT: Sure, I will help you in changing the reservation. Please wait for a while.

USER: Thank you for considering my request. Ok.

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

USER: It's ok, anyway thank you for the information.

ASSISTANT: Thank you for choosing us.