You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: My name is Robert Clark. I would like to book a flight ticket from DCA to PHL to meet my friend. Can you help me for booking a flight ticket?

ASSISTANT: Sure, please provide me your travelling dates?

USER: My travelling dates are 08/25 and 08/27.

ASSISTANT: How much can you afford for your flight ticket?

USER: I can afford up to 1000.

ASSISTANT: Thanks for your details, we found a connecting flight 1009 in Hawaiian airline with fare 200. Shall I reserve it?

USER:  I need a direct flight in my journey.

ASSISTANT: Sorry, there is no direct flight found on your journey routes.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you.

USER: Welcome.