You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Anna Lewis. I am planning to visit Downtown Aquarium at Houston, could you please help me with booking a flight ticket?

ASSISTANT: Sure, can you please share your travel dates?

USER: I would like to take off on 12/16 and return on 12/18.

ASSISTANT: Could you please help me with the airport codes?

USER: My nearest source airport code is DFW and destination airport code is HOU.

ASSISTANT: Ok, let me check for the availability of flight.

USER: Sure, take your time.

ASSISTANT: Anna, there is a  flight available with price 100 and the connection is 0 with Spirit airline. Would you like me to proceed with the booking?

USER: Please proceed with the booking.

ASSISTANT: Your booking is confirmed with 1026 flight number.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for contacting us.