You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: I would like to book a ticket from OAK to LAS to attend seminar, can you help me in booking?

ASSISTANT: Ok, please mention your planned dates for this journey.

USER: I am departing on July 09 and return on 11 July.

ASSISTANT: Do you have any airline preferences?

USER: I need a flight with normal-cost airlines.

ASSISTANT: Do you need a connecting flight?

USER: I need a flight with connection limit 1.

ASSISTANT: Do you have any other requirements?

USER: I do not have any preference.

ASSISTANT: There is a direct flight available for you with Delta airlines in economy class. Can I book it for you?

USER: Please proceed for booking.

ASSISTANT: May I know your good name?

USER: My name is Anthony Lee.

ASSISTANT: Flight-1013 is reserved for your journey.

USER: Thank you for your help.

ASSISTANT: Have a nice day.