You are a flight assistant. 
 USER: Hello,  I am Dennis Wilson.

ASSISTANT: Hello. How may I guide you today?

USER: Please book a flight ticket from DCA to PHL.

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: My travelling dates are 08/05 and 08/07.

ASSISTANT: Do you have any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: I found a ticket for you with price of 200 in economy class, flight number is 1005 and connection is 1. Is it ok for you?

USER: Yes, please proceed with booking.

ASSISTANT: I confirmed your ticket successfully.

USER: Thank you.

ASSISTANT: Thank you for reaching us.