You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you now?

USER: I want to book a direct flight as it's urgent to reach Los Angeles, CA-LAX. Can you help me with this?

ASSISTANT: Sure, we are here to help you. Can you please share your journey dates?

USER: Sure, I have to go on 03/09 and intend to back on 03/11.

ASSISTANT: Is there any restriction for price?

USER: I can afford up to 5000.

ASSISTANT: May I know your preferred boarding airport code?

USER: Sure, it's Washington, DC-DCA.

ASSISTANT: To proceed with booking I need your name.

USER: I am Alexander Baker.

ASSISTANT: We found a flight in Delta airline of flight number 1013 having a way station and fare 100. Shall I proceed for booking?

USER: Sure, please proceed with the booking.

ASSISTANT: Your booking has been done successfully.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing our airlines.