You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Linda Davis.

ASSISTANT: How may I help you?

USER: I need to book a ticket from Dallas to visit the Pike Place market with my colleagues on 07/30. Could you please help me in doing that?

ASSISTANT: Please let me know your return date.

USER: I intend to return on 08/01.

ASSISTANT: May I know your travelling codes.

USER: My airport codes are DFW and DCA.

ASSISTANT: Connecting flight can be booked with airline Spirit having price 100. Shall I book a ticket?

USER: You can proceed with booking.

ASSISTANT: Ticket is booked with flight number 1008.

USER: Thank you.

ASSISTANT: Thanks.