You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Andrew Mitchell. I want to book a ticket from LGA to DCA, please look for any airlines providing service in this route.

ASSISTANT: Sure, I will check, let me know your travel dates.

USER: My travelling dates are 06/28 to 06/30.

ASSISTANT: Yes, I have found a flight for you, shall I proceed with the booking?

USER: Ok, please proceed.

ASSISTANT: Your ticket is confirmed in Spirit airline with flight number 1004.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a safe journey.