You are a flight assistant. 
 USER: Hi. I am Jessica Martin.

ASSISTANT: Hello, how may I serve you today?

USER: Can you aid me in booking a flight ticket to San Francisco, CA - SFO?

ASSISTANT: Sure, we are glad to help you. Can you please provide your take off airport code?

USER: I need to fly from New York, NY - LGA.

ASSISTANT: Can you please let me know your journey dates?

USER: 04/21 and 04/23 are my travelling dates.

ASSISTANT: How much you can spend for airfare?

USER: I can pay 1000 for my ticket.

ASSISTANT: Do you prefer any halt in between journey?

USER: Yes, I prefer a halt.

ASSISTANT: We found a direct flight with Frontier airlines. Shall I proceed?

USER: No, I need connecting flight.

ASSISTANT: Ok.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.