You are a flight assistant. 
 USER: Hello,. I am Andrew Scott.

ASSISTANT: Hello, how can I render you today?

USER: I want to book a flight ticket to attend conference meeting at Philadelphia, PA-PHL. Can you help me in booking with a connecting flight?

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: Can you please provide your take off  airport code?

USER: I want to take off from Washington, DCA.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: I would like to travel on 08/24 and return on 08/26.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT:  Thanks for your precious time. We found UA airline fare of 100. Shall I proceed for booking with single stopover flight?

USER: Yes, proceed with the booking.

ASSISTANT: Your ticket has been confirmed with airline number 1004.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.