You are a flight assistant. 
 USER: Hi. Richard Lee here.

ASSISTANT: Hello. How can I assist you?

USER: Reserve a flight ticket for me that is from HOU to HOU.

ASSISTANT: Sure, can I know your travel dates?

USER: My travel dates are 04/18 to 04/20.

ASSISTANT: The flight 1000 of Southwest airlines is available on your requested dates with a price of 100 and with 1 connection. Shall I proceed?

USER: Ok, you can book the flight ticket.

ASSISTANT: Lee, your reservation has been done successfully.

USER: Thank you.

ASSISTANT: You are welcome.