You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Ryan Parker.

ASSISTANT: How shall I help you?

USER: Can you help me booking flight from DCA to PHL?

ASSISTANT: Please mention your travel dates?

USER: My travel dates are 02/03 and 02/05.

ASSISTANT: Ticket can be booked with connections 1, flight number 1004, airline Spirit having price 100. Shall I book ticket?

USER: Ok, proceed to booking.

ASSISTANT: Ticket is booked.

USER: Thank you for booking.

ASSISTANT: Thanks.