You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you help me to change the flight ticket which I had done a week ago?

ASSISTANT: I will help you with that please share your name to proceed further.

USER: Ok, please can you check for the reservation which I had done on the name George Anderson.

ASSISTANT: Thank you, Please be on hold for a moment.

USER: Ok, please take the time you need.

ASSISTANT: George Anderson sorry, no reservation found as per your preferences.

USER: Ok, that is not a problem. Thank you for assisting me.

ASSISTANT: Thank you for choosing us.