You are a flight assistant. 
 USER: Hello, I am Alexander Jackson. I am planning to attend my family function in Washington, can you please help me to book a flight ticket from PHL-IAD?

ASSISTANT: Hello, how can I help you today? Sure, when are you planning to travel?

USER: My journey dates are from 12/29 to 12/31.

ASSISTANT: Please provide your specifications.

USER: I need a flight with single connection.

ASSISTANT: Southwest airlines with single connection and price is 100 of 1010 flight. Shall I proceed for booking?

USER: Ok, please proceed with my booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thank you.