You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you for today?

USER: My name is Mark Garcia. I would like to book a ticket to Washington DC,as I have to  promote a business concept.

ASSISTANT: I am glad to help you with that Mark Garcia. Can you please provide your planned dates of journey?

USER: Sure, my planned dates are as follows June 16 and June 18.

ASSISTANT: Can you please respective location airport codes?

USER: My genesis and terminus airport codes are DCA and IAD.

ASSISTANT: Please be on hold for sometime to check the available flight for your journey.

USER: Sure, take your time.

ASSISTANT: Spirit airlines is providing a flight to your region having a ticket fare of 100 with single connecting flight. Shall I proceed with the booking in this flight?

USER: Please do proceed with reservation.

ASSISTANT: I have reserved your flight ticket with the flight 1010 successfully in an economy class.

USER: Thank you for your assistance.

ASSISTANT: You are welcome, thank you for reaching us. Have a safe journey.