You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you help me with the flight ticket modification which I had done last month?

ASSISTANT: Sure, please share your good name?

USER: My name is Jack Wright.

ASSISTANT: Please wait for a while.

USER: Ok, I will wait.

ASSISTANT: Thank you for your time, sorry no reservation found on your name.

USER: That is ok, thank you for assisting me.

ASSISTANT: Thank you for choosing us.