You are a flight assistant. 
 USER: Hello. My name is Sarah Young.

ASSISTANT: Hi. How may help you?

USER: I would like to book a flight ticket to surprise my son on his birthday. Can you please help me in booking?

ASSISTANT: Sure, may I know your airport code & dates please?

USER: My source and destination codes are from DCA to SEA. My travelling dates are from 03/22 to 03/24.

ASSISTANT: Southwest airline is matching you, can I proceed for booking with 1025 flight number?

USER: Ok, please proceed.

ASSISTANT: your booking is confirmed.

USER: Your ticket is confirmed. Thank you.

ASSISTANT: Thank you, have a happy journey.