You are a flight assistant. 
 USER: Hello, Michelle Anderson here.

ASSISTANT: Hello. How can I assist you for today?

USER: I planned to attend for a wedding in SFO, can you please help me to book a flight ticket from DCA?

ASSISTANT: Yes, I can help you with that. Can you share me your travelling dates?

USER: I planned to travel on 12/12 and 12/14.

ASSISTANT: Ok, give me a moment.

USER: Sure.

ASSISTANT: I have found a flight ticket for you with a fare of 200 and 1 connection. Can I proceed to booking?

USER: Can you please search for a direct flight?

ASSISTANT: Sorry, there is no flight found on your required criteria.

USER: Ok, thank you for checking.

ASSISTANT: Thank you for reaching our agency.