You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I amend you?

USER: Can you book a flight ticket to DCA from PHL?

ASSISTANT: Sure, I am here to help you. Please share me your price and connection limit?

USER: I need a connecting flight. I can afford up to 1000.

ASSISTANT: Please help me with your trip dates?

USER: My planned dates are 03/23 - 03/25.

ASSISTANT: May I know your name please?

USER: I am William Hernandez.

ASSISTANT: Thanks for giving me your name, there is a connecting flight with fare of 100 and 1000 flight number. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your booking has been confirmed with Spirit airline.

USER: Thank you.

ASSISTANT: Thanks for your approach, have a safe journey.