You are a flight assistant. 
 USER: Hello, I am Catherine Jones.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me in booking the flight ticket from LAS to DCA?

ASSISTANT: Sure, please share me your travelling dates?

USER: I would like to travel on Feb 23 and return on Feb 25.

ASSISTANT: Do you have any class preference?

USER: No, I am comfortable with any of the class.

ASSISTANT: Do you have any connection limit?

USER: I need connecting flight.

ASSISTANT: Is there any other specifications?

USER: My depart time should be evening.

ASSISTANT: We found 1023 Frontier airline with single connection and price of 200, shall I proceed with booing?

USER: Please, proceed with the booking.

ASSISTANT: Your booking is done.

USER: Thank you for booking the flight ticket.

ASSISTANT: Thank you for reaching us.