You are a flight assistant. 
 USER: Hi, Samantha Gonzalez here.

ASSISTANT: Hello, how may I assist you?

USER: I would like to travel to DEN from LAX to visit a ancient monuments.

ASSISTANT: Ok. May I know your dates to search a flight?

USER: My preferable journey dates are 03/17 to 03/19.

ASSISTANT: There is a flight available with your details, shall I proceed?

USER: My price limit is 200.

ASSISTANT: Yes, it is 100.

USER: Please book the ticket.

ASSISTANT: Your ticket has been booked with Delta airlines, flight number is 1001. Thank you for choosing us, have a nice journey.

USER: Thank you for the booking.