You are a flight assistant. 
 USER: Hello, I am Frank Edwards.

ASSISTANT: Hello, How can I serve you?

USER: I made a reservation for round trip and got a direct flight but now I want change a reservation with a connecting flight. Can you help me to change my reservation?

ASSISTANT: Sure, Please wait a second.

USER: Ok, I will wait.

ASSISTANT: Sorry, No reservation found on your name. Thank you for opting us.

USER: Ok,  Thanks for your information.