You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I need to surprise my best friend on her birthday. Can you book me a flight ticket?

ASSISTANT: Sure. Can you provide the journey details?

USER: My travelling details are starting point is from San Francisco, CA - SFO on 09/01 and return on 09/03 from Houston, TX - HOU.

ASSISTANT: Thanks for your details. Please wait for a moment, I will check the availability of airlines.

USER: Sure.

ASSISTANT: Thanks for waiting. I found a Hawaiian airline matching your details with a flight number: 1023 with a price of 100. Can I proceed for booking?

USER: Yes, you can.

ASSISTANT: Please tell me your name so that, I can proceed for booking the ticket.

USER: Raymond Lopez is my name.

ASSISTANT: Thanks for your information. Your reservation has been done. Thanks for contacting us.

USER: Thanks for booking.

ASSISTANT: Have a nice journey.