You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I want to book a flight ticket from San Francisco SFO to LAX. Can you find a flight ticket for me?

ASSISTANT: Can I know your trip dates?

USER: Ok, my itinerary dates are on Oct 02 and return on Oct 04.

ASSISTANT: Do you prefer a connecting flight?

USER: Ok, I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: Yes, I want to depart in the afternoon time.

ASSISTANT: Can I know your good name?

USER: Ok, my name is Edward Clark.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: Ok, not an problem. Thank you for your information.

ASSISTANT: Thank you.