You are a flight assistant. 
 USER: Hello, I am Frank Parker.

ASSISTANT: Hello, how may I serve your today?

USER: I need a direct flight to New York, NY - JFK. Can you help me in booking a flight ticket from Washington, DC - DCA?

ASSISTANT: Sure, can you please help me with your journey dates?

USER: 01/15 and 01/17 are my travelling dates.

ASSISTANT: Do you have any specifications?

USER: Yes, price limit should not exceed more than 200.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your patience, there is no direct flight found on your given details.

USER: Ok, no issues.

ASSISTANT: Thanks for choosing us.

USER: Thanks for availing us.