You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Thomas Thomas and I want to change my reservation. Can you please help me?

ASSISTANT: May I know your name please?

USER: I am Thomas Thomas.

ASSISTANT: Sorry, we did not found any reservation under your name.

USER: Not an issue, Thank you for the information.

ASSISTANT: Thank you for reaching us.