You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Catherine Young, planning to book a flight ticket from PHL to IAD. Can you help me?

ASSISTANT: Please provide your dates of travelling.

USER: My travelling dates are from 04/28 to 04/30.

ASSISTANT: Please wait for a moment.

USER: Ok. I need only 1 connection for my flight.

ASSISTANT: Flight number 1004 of Southwest airlines is available for you.

USER: Ok, please proceed booking.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.