You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Melissa Johnson. I need to go Charlotte for my vacation holidays so please help me with flight ticket booking from Las Vegas.

ASSISTANT: Can you share me your trip dates?

USER: Thank you. I have planned my travel dates as Apr 27 and Apr 29.

ASSISTANT: May I know your depart time and arrival time?

USER: Sure, I would like to return in the afternoon time.

ASSISTANT: Do you need any break in your journey?

USER: Probably I would prefer single break but even direct flight is also fine with me now.

ASSISTANT: Is there any other preferences for you?

USER: No, I am ok with any airlines.

ASSISTANT: There is a connecting flight with fare of 200 and 1011 flight number. Shall I proceed?

USER: That is fine, please proceed with booking.

ASSISTANT: Your seat has been reserved with Jet Blue airline in economy class and you will arrive at 14:00 PM.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.