You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Carolyn Collins. I am planning to visit Redwood regional park in Denver. Can you help me to book a flight with one halt in normal cost?

ASSISTANT: Sure, we are glad to help you for booking. Can you please help me with your travelling airport codes?

USER: Thank you. My airport codes are DCA and DEN.

ASSISTANT: Ok, please share your planned journey dates.

USER: My journey dates are Mar 16 and Mar 18.

ASSISTANT: Ok, may I know your budget limit?

USER: I can afford up to 200.

ASSISTANT: Thanks for your details. We are glad to inform you that, we found a flight in 1024 Hawaiian airline with a fare of 100 and single connection. Can I proceed for booking?

USER: Please proceed.

ASSISTANT: Sure, your ticket has been processed.

USER: Thanks for your help and support.

ASSISTANT: Thank you for availing our service.