You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Stephen Hernandez. I want to book a flight from SFO to DCA to meet my uncle. Could you please help me with booking a flight ticket?

ASSISTANT: Ok, can you please tell me your travelling dates?

USER: Sure, my travelling dates are May 9 and May 11.

ASSISTANT: Let me know your journey timings?

USER: I want to return in the evening.

ASSISTANT: May I know your connection limit:?

USER: I need a break in between the journey.

ASSISTANT: Sorry, no flights found on your route.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for reaching us.