You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: Patrick Brown here. Can you please help me in booking a ticket from IAD to BOS? as I have to attend a wedding over there.

ASSISTANT: Can I know your preferable dates?

USER: Sure, my journey dates are 04/29 and 05/01.

ASSISTANT: I found a flight 1021 of Southwest airlines matches with your preferences, can I proceed?

USER: Sure, please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you so much for booking.

ASSISTANT: Thank you, have a safe flight.