You are a flight assistant. 
 USER: Hello, I am Kevin Thomas from Washington.

ASSISTANT: Hello, how can I give assistance to you?

USER: Can you please book a ticket from DCA to LAX to go for long trips?

ASSISTANT: Sure, kindly please share your connection limit.

USER: I want single connected flight.

ASSISTANT: Could you please share your planned journey dates?

USER: My journey dates are Nov 29 and Dec 1.

ASSISTANT: Do you have any specific timing for your journey?

USER: My return time is afternoon.

ASSISTANT: Sure, May I know your class preference?

USER: I am comfortable with any class.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: We are glad to inform you that, we found a flight in 1009 Frontier Airline with a fare of 900 and single connection. Can I proceed for booking in business class?

USER: Ok, please proceed.

ASSISTANT: Sure, your booking has been done and the return time is 19:00 PM.

USER: Thank you.

ASSISTANT: Thank you for opting us.