You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How may I assist you?

USER: I am Deborah Harris. I want to book a flight ticket to attend Global Student Entrepreneur Awards event in Chicago, ORD. Can you please help me in booking from San Francisco, SFO?

ASSISTANT: Sure, May I know the journey dates?

USER: My journey dates on 07/29 to 07/31.

ASSISTANT: Do you have any other requirements?

USER: I need a connected flight. Price limit should not exceed 500.

ASSISTANT: We have found a flight from Frontier airline with flight number 1004.

USER: Ok, please proceed with booking.

ASSISTANT: Your flight has been booked.

USER: Thanks for your help in booking.

ASSISTANT: Thank you for availing us.