You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Could you please help me to update my travelling dates in my existing reservation?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: I am Eric Collins.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry to inform you that there is no active reservation on your name to change.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for connecting with us.