You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you?

USER: Can you please help me in booking my flight ticket from DEN to SFO?

ASSISTANT: Sure, help me with the trip dates?

USER: My trip dates are Oct 26-28.

ASSISTANT: May I know your name please?

USER: Myself Jessica Thomas.

ASSISTANT: Do you have any preferences?

USER: I prefer to fly in connected flight.

ASSISTANT: Sorry, no flights were running in your desired routes.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you for reaching us.