You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Helen Allen.

ASSISTANT: How may I help you?

USER: I would like to participate in the sky driving in Washington with my friend to enjoy the driving. Could you please assist me in making a plane reservation?

ASSISTANT: Please provide your journey dates?

USER: My departure and arrival dates are 02/25 and 02/27.

ASSISTANT: Please specify airport codes?

USER: My source and destinations are from CA-LAX to DC-IAD.

ASSISTANT: Please provide connections limit?

USER: I need a flight with one connection.

ASSISTANT: Ticket is available with flight number 1016, airline UA for price 100.

USER: You can proceed with the booking.

ASSISTANT: Ticket is booked.

USER: Thank you for your response.

ASSISTANT: Thanks.