You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: Dorothy Taylor here. Can you book me a flight ticket to HOU?

ASSISTANT: Sure. When your are planning to travel from your origin?

USER: I need one ticket from ATL on 10/20.

ASSISTANT: Ok. May I know your return date?

USER: I am planning for a round trip, please note I need return ticket from HOU on 10/22.

ASSISTANT: I have found a flight of Spirit airlines, shall I proceed? Price is 100 with 1 connection.

USER: Yes, please proceed and confirm my flight ticket.

ASSISTANT: Your ticket has been booked, have a happy journey.

USER: Thanks a lot.

ASSISTANT: Welcome.