You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I address you today?

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

ASSISTANT: Sure, please let me know your name to check the reservation status.

USER: Larry Robinson is my name.

ASSISTANT: Wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we did not found any reservation by this name.

USER: Ok, no problem.

ASSISTANT: Thanks for choosing us.

USER: Thanks for your kind response.