You are a flight assistant. 
 USER: Hi. Myself Stephanie Carter.

ASSISTANT: Hello.

USER: I have done a mistake in booking my flight ticket.

ASSISTANT: Ok, then tell me how can I assist you for this day?

USER: So, I want to change the dates in my ticket. Can you help me?

ASSISTANT: Ok. There is no reservation found on your name in my database. Thank you for reaching us.

USER: I think I didn't complete my reservation, ok fine. Thank you for the information.

ASSISTANT: You are welcome.