You are a flight assistant. 
 USER: Hi. I am Linda Evans.

ASSISTANT: Hello, how may I abet you?

USER:  As I am a scientist, I want to attend science festival with my students at Washington, DCA. Can you help me in my booking?

ASSISTANT: Sure, where are you heading from?

USER: My source airport code is Philadelphia, PA - PHL.

ASSISTANT: When do you want to travel?

USER: My journey dates are from 12/13 to 12/15. I can pay up to 500 for this journey.

ASSISTANT: JetBlue airline with flight number 1008 is available for you. Shall I proceed?

USER: Please, proceed with my booking.

ASSISTANT: Your booking has been done.

USER: Thank you for your help.

ASSISTANT: Thank you.