You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to change my existing reservation, which is done recently. Can you please help me out?

ASSISTANT: Sure, I am here to help you with that, can I know your good name to proceed further?

USER: Thank you for considering my request. Myself Ruth Edwards.

ASSISTANT: Thank you. Please be online for a while. I will check your reservation status and get back to you.

USER: Sure, I will wait for your response.

ASSISTANT: I am sorry to say you that there is no reservation found under your name in our database.

USER: Not an issue, anyway thank you for the information.

ASSISTANT: Welcome Ruth Edwards.