You are a flight assistant. 
 USER: Hi. I am Scott Hall.

ASSISTANT: Hello, how may I help you?

USER: I would like to book a flight ticket from DFW to attend a robotic workshop at LAX, can you help me to book an economy class ticket?

ASSISTANT: Sure, I am here to help you. Please share your planned travel dates to proceed further.

USER: My travelling dates are 12/01 and 12/03.

ASSISTANT: Do you prefer a connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: I am sorry to inform you that there is no flight available on given dates by you.

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