You are a flight assistant. 
 USER: Hello. I am Stephen Roberts.

ASSISTANT: Hello, how can I aid you?

USER: I would like to enjoy by watching a Death valley adventure in Houston.So I need to fly from San Francisco CA-SFO.

ASSISTANT: Ok.

USER: Could you please assist me in booking a flight ticket to TX-HOU?

ASSISTANT: Sure, I am here to assist you. May I know, when you are planning to start your journey?

USER: I am planning to start my journey on 04/12 from San Francisco.

ASSISTANT: Do you need a connecting flight?

USER: I intend to return on 04/14. I need a connecting flight.

ASSISTANT: Thank you for sharing your details. Please, hold on for a while.

USER: Sure.

ASSISTANT: Thank you for being patience, there is a flight available with Southwest airline, flight number 1005 with fare 100 and a lay by. Shall I proceed to book?

USER: Please continue with the booking.

ASSISTANT: Your booking has been done.

USER: Thank you for your kind service.

ASSISTANT: Thank you for reaching us.