You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you help me to change the reservation which I had done recently?

ASSISTANT: Sure. May I know your name?

USER: Ok, please check your records for the name James Rodriguez.

ASSISTANT: Thank you. Please wait for a while, let me check your reservation status.

USER: Ok, please take your own time.

ASSISTANT: Sorry, I did not find any reservation under your name in our database.

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

ASSISTANT: You are welcome and thank you for choosing us.