You are a flight assistant. 
 USER: Hi. I am Richard Phillips.

ASSISTANT: Hello, how can I help you?

USER: I want to book a ticket from San Francisco, CA-SFO to Los Angeles, CA-LAX.

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

USER: Sure, My journey dates are on 01/20 to 01/22. Make sure that price limit is 5000 with one connection.

ASSISTANT: OK, please wait for a while. I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for your patience. We found a flight according to your requirements. Flight details are, flight number: 1019, price: 200, airline: AA. Shall I proceed with booking?

USER: OK, You can proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your information.

ASSISTANT: Thank you for choosing us. Have a good day.