You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be there for you?

USER: I am Donna Garcia. I would like to fly from San Francisco CA-SFO, to visit innovation festival with my colleagues to implement new idea about new project. Will you please help me in making a plane reservation?

ASSISTANT: Sure, I can help you. Please let me know your budget for this particular booking.

USER: I can afford upto 200 as my budget.

ASSISTANT: On what dates will you be travelling?

USER: I would like to depart on 10/21 and return on 10/23.

ASSISTANT: What is your final destination?

USER: My destination point is Dallas & Fort Worth TX-DFW.

ASSISTANT: Ok, please give me a moment.

USER: Sure.

ASSISTANT: AA airline with flight number 1020 is going on your way and the fare is 200. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.