You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Pamela Anderson here.

ASSISTANT: How may I assist you today?

USER: I want to travel from DC-DCA to WA-SEA for attending a VLSI seminar. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I will help you.

USER: I was made a mistake in that reservation. So I want to make changes on that. Can you please help me for that?

ASSISTANT: Ok, I can do this for you.

USER: Ok.

ASSISTANT: Please wait a moment to check your previous reservation status.

USER: Take your time.

ASSISTANT: Sorry to inform you that, there is no reservation found with your name in our records.

USER: Thank you for the information.

ASSISTANT: Thank you for reaching us, have a great day.