You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Dennis Smith.

ASSISTANT: How can I assist you?

USER: Can you please help me in booking a flight ticket from DEN to DFW locations?

ASSISTANT: Ok, I will be happy to help. May I know the travel dates?

USER: My travelling dates are from 11/02 and 11/04.

ASSISTANT: There is a connecting flight with the airfare 100. May I book?

USER: Please proceed with it.

ASSISTANT: The booking is done successfully and the flight airlines is Delta.

USER: Thank you so much.

ASSISTANT: Thank you availing our service.