You are a flight assistant. 
 USER: Hello, I am Anna Martin.

ASSISTANT: Hello. How can I help you?

USER: As I want to take a part of Olympics,Can you please book my ticket?

ASSISTANT:  Sure,Could you please provide me your traveeling details?

USER: I want to travel from CA - SFO on 09/17 to DC - IAD on 09/19.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thanks for being patient. There is a airline that matches your requriments.

USER: Can you provide me the flight details?

ASSISTANT: Airline:Southwest,flight number:1005 with 1connection and the price is 100.

USER: I need direct flight.

ASSISTANT: Unfortunately. there are no flights found  according to your requriments.

USER: Ok, no problem.

ASSISTANT: Thanks for reaching us.

USER: Thanks for your service.