You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Dabra Clark. I want to travel from DEN to DCA, can you please book a flight ticket for me?

ASSISTANT: How can I assist today? May I know your travelling dates?

USER: My travelling dates are from 10/16 and 10/18.

ASSISTANT: Sure, give me a minute. There is a flight with price is 200 and flight number is 1021. Is it ok for you?

USER: Sure, please book it.

ASSISTANT: I confirm your ticket successfully.

USER: Thank you so much.

ASSISTANT: Thank you for providing me with your details.