You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is Charles Carter. I would like to travel from DCA to LAS.

ASSISTANT: Ok, please help me with your travel dates to proceed.

USER: My preferable dates are from 03/26 to 03/28.

ASSISTANT: Southwest airline is available with 1 connection and the price limit is 100. Shall I proceed?

USER: Please proceed with the booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Most welcome.