You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I want to enjoy my holidays in Los Angeles, can you please book a flight ticket for me?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: I would like to departure on 08/16 and please book my return ticket also on 08/18.

ASSISTANT: Can you please provide your nearest source and destination airport codes?

USER: I want to fly from ORD airport and destination airport is LAX.

ASSISTANT: May I know your name?

USER: Sure, my name is Donna Thompson.

ASSISTANT: Here is a flight with ticket fare 100 in UA airlines with connection 1, would you like me to proceed with the booking?

USER: Please confirm this flight ticket for me.

ASSISTANT: Your booking is confirmed with flight number 1011.

USER: Thank you for your service.

ASSISTANT: Thank you for contacting us, have a nice day.