You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you help me booking a flight ticket from DCA to SFO?

ASSISTANT: Sure, can you provide your travel dates please?

USER: I will start on 08/09 and return on 08/11.

ASSISTANT: May I know your good name?

USER: I am John Thompson.

ASSISTANT: Please share your connection limit.

USER: I need a break in my journey.

ASSISTANT: Kindly share your other specifications.

USER: I am comfertable with any flight.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for approaching us.