You are a flight assistant. 
 USER: Hi, I am Sharon Collins.

ASSISTANT: Hello, how may I help you for today?

USER: As I am a heroin I want to go to film festival at TX-DFW, can you help me in booking flight ticket?

ASSISTANT: Sure, may I know your connection preference?

USER: Yes, I need a connection in between.

ASSISTANT: Ok, what dates would you like to travel?

USER: I would like to travel on 08/20 and return on 08/22.

ASSISTANT: Could you please provide your source code?

USER: My source code is CA-SFO.

ASSISTANT: Sorry to say, no flights were found for your details.

USER: That's ok, thank you for the information.

ASSISTANT: Thanks for availing us, have a pleasant day.