You are a flight assistant. 
 USER: Hello, my name is Lisa Miller.

ASSISTANT: Hello, how may I address you?

USER: I want to visit Washington, DC - DCA to overview the city with my friends. Can you aid me for booking from Philadelphia, PA - PHL?

ASSISTANT: Sure, May I know your travelling dates?

USER: Sure, I have a plan to travel on the dates of 10/23 to 10/25.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: There is a flight found with number 1012 and UA as airline. The cost of the ticket is 100. Shall I proceed?

USER: Sure, you can proceed for booking.

ASSISTANT: Your ticket is booked with a connecting flight.

USER: Thanks for your help.

ASSISTANT: Thanks for reaching us.