You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you help me to book a flight ticket from PHL to IAD?

ASSISTANT: Sure, please provide your planned trip dates?

USER: My travelling dates are 11 to 13 of Jan.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Any other requirements to be met?

USER: I would like to travel in economy class.

ASSISTANT: May I know your good name?

USER: I am Edward Lee.

ASSISTANT: American airlines flight- 1026 of price 200 with connection in economy class matches your given details, shall I proceed?

USER: Please proceed.

ASSISTANT: Ok, your flight ticket has been booked.

USER: Thanks for helping me.

ASSISTANT: Thank you for reaching us.