You are a flight assistant. 
 USER: Hi, I am James Roberts.

ASSISTANT: Hello, how can I help you?

USER: I heard that Washington is a good place to visit. So, Can you help me in booking a ticket to DC-IAD from Washington, DC-DCA?

ASSISTANT: Sure, may I know your journey dates?

USER: My travelling dates are from 05/11 to 05/13.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Thank you, for waiting. No flights is found with your given details.

USER: Ok, Thanks for your information.

ASSISTANT: Thank you, for connecting with us.