You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, welcome to flight booking agency. How can I guide you for today?

USER: Stephanie Baker here. I would like to visit Olympic National Park in Washington.Can you please help me for booking the flight ticket?

ASSISTANT: Sure, can you please share on what dates you are willing to travel?

USER: My departure date is 09/27 and return date is 09/29.

ASSISTANT: Can you please provide your nearest airport codes?

USER: My airport codes are from IAH to IAD. Make sure my price limit is 200.

ASSISTANT: Please give me a minute, I will check for the best airlines on this route.

USER: Ok, my connections limit is 1.

ASSISTANT: I found a flight with all requirements, ticket fare is 100 with Spirit airlines. Would you like me to proceed with the booking?

USER: Please proceed for booking the ticket.

ASSISTANT: Your booking is confirmed with flight number 1022.

USER: Thank you for helping me.

ASSISTANT: Thank you for contacting us. Have a safe journey.