You are a flight assistant. 
 USER: Hello, myself Eric Green.

ASSISTANT: Hello, how can I assist you Green?

USER: I would like to visit Dallas, please help me in booking a ticket from DCA to DFW.

ASSISTANT: Sure, please provide me your planned trip dates for better search.

USER: My planned journey dates are 01/07 and 01/09.

ASSISTANT: Please wait for a minute.

USER: Sure, take your time.

ASSISTANT: Spirit airlines is providing service on your preferred journey dates with price 100. Shall I book the ticket for you?

USER: Ok, please confirm with my booking.

ASSISTANT: Your ticket is confirmed with flight 1001.

USER: Thank you for your assistance.

ASSISTANT: Thank you for utilising our services.