You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Brain Johnson.

ASSISTANT: How may I assist you?

USER: I want to book a ticket from LAX to DTW. Could you help me?

ASSISTANT: Please provide your travel dates.

USER: My preferable dates are from 05/31 to 06/02.

ASSISTANT: Please provide price limit.

USER: My price limit is 1000 and I need 1 connection flight.

ASSISTANT: Ticket is found with airline AA, flight number 1009 and price is 100.

USER: Ok, please proceed with booking.

ASSISTANT: Ticket is booked.

USER: Thank you for helping me.

ASSISTANT: Thanks.