You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you now?

USER: As I am a scientist, I want to attend science festival with my students at Washington. Can you do the reservation?

ASSISTANT: Sure, please share me your planned journey dates?

USER: Dates are 03/12 and 03/14.

ASSISTANT: May I know your source and destination airport codes?

USER: My airport codes are PHL-DCA.

ASSISTANT: Do you need any halt in between the journey?

USER: I need break in I need break in my journey.

ASSISTANT: Thank you for the details, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, I found a flight of Southwest airline, flight number is 1012 and fare is 100. Shall I proceed with booking?

USER: Go ahead.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you so much.

ASSISTANT: May I know your name?

USER: Lisa Jackson here.

ASSISTANT: Thank you for reaching us.