You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you aid me to change my reservation that I have done?

ASSISTANT: Sure, I am here to help you. May I know your name?

USER: Myself Janet Thomas here.

ASSISTANT: Please wait for a moment. Sorry, no reservation found on your name.

USER: Ok, no issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you.