You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you?

USER: I want to book a flight ticket to San Francisco with price under 500. Can you help me with it?

ASSISTANT: Sure, I will help you. Help me with your boarding and landing airport codes.

USER: Airport codes are EWR-SFO.

ASSISTANT: When are you willing to travel?

USER: Travel dates are 10/09 and 10/11.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Please, wait for a moment.

USER: Ok.

ASSISTANT: Thank you for being patience, there is a flight found that matches your requirements.

USER: You can proceed with booking.

ASSISTANT: Airline: Frontier, flight number:1011 with fare 20 and a lay by.

USER: Thanks for the help.

ASSISTANT: I need your name to confirm booking.

USER: My name is Daniel White.

ASSISTANT: Your reservation is done successfully. Thank you for reaching us.

USER: Thank you.