You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I render you today?

USER: I am Sandra Lewis want to travel TX-HOU to attend a conference from TX-DFW. Can you book a ticket?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: My travel dates are 03/16 and 03/18.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Ok.

ASSISTANT: I found a flight for you with Hawaiian airline and it costs you 200. Shall I proceed?

USER: Ok, you can proceed.

ASSISTANT: Your ticket has been booked with 1027 flight number.

USER:  Thank you for booking.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.