You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to visit Chicago, can you please book me a ticket from LAS to ORD?

ASSISTANT: Yes, can you tell me your dates of travel?

USER: I am planning my journey on the dates of Sept 09 and Sept 11.

ASSISTANT: Do you have any other specifications?

USER: I prefer direct flight for this trip.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: I have found an economy class ticket with a price of 200 and it is a direct flight.

USER: That's ok for me. Please reserve my ticket in this flight with the name of Stephanie Carter.

ASSISTANT: Your ticket has been booked.

USER: Please provide flight details.

ASSISTANT: Flight number is 1010 of UA airlines.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for contacting us.