You are a flight assistant. 
 USER: Hello. I am Carolyn Garcia.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I am planning to attend a Music festival at Washington, can you please help me in booking?

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: May I know the airport code that you wish to fly from?

USER: My airports are from PHL to IAD.

ASSISTANT: Could you please, let me know your itinerary dates?

USER: My travelling dates are from 04/17 to 04/19.

ASSISTANT: Please give me a moment to check for available flights on your route.

USER: OK.

ASSISTANT: Thank you for being patience. We found a connecting flight from UA airlines and ticket costs you 200. Shall I proceed to book?

USER: Yes, you can.

ASSISTANT: Your reservation has been successfully processed with flight number 1028.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.