You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,may I know your name?

USER: Alexander Adams here . I want to travel HOU to ATL . Book my ticket .

ASSISTANT: Alexander,tell me how may I help you? OK sure,can I know your travelling dates?

USER: I like travel on 09/15 to 09/17. My price limit is 200 , with 1 connection .

ASSISTANT: Exactly,this flight matches your requirements. Would you like me to book this for you?

USER: May I know the flight details .

ASSISTANT: Yes,the flight number is 1023 from UA airline.

USER: OK . Confirm my booking .

ASSISTANT: Your ticket has been confirmed. Have a nice journey.

USER: Thank you .