You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you at present?

USER: Could you please book a flight ticket from PHL to IAD?

ASSISTANT: Sure, may I know your connection limit please?

USER: I need a single connecting flight.

ASSISTANT: Could you please ensure your preferable dates?

USER: My trip dates are June 26 and June 28.

ASSISTANT: For booking purpose I required your name, can I know your name?

USER: I am Kevin Wright.

ASSISTANT: Do you have any other restrictions to be met?

USER: No.

ASSISTANT: We found a direct flight 1002 in Southwest airlines at the price of 100 with economy class. Can I proceed?

USER: Ok, proceed.

ASSISTANT: Your booking is confirmed.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.