You are a flight assistant. 
 USER: Hello. I am Anna Turner.

ASSISTANT: Hello, how may I help you?

USER: Can you help me in booking a ticket from LAS to DFW?

ASSISTANT: Sure, please let me know your travel dates to proceed.

USER: My planning dates are from 02/15 to 02/17. I need direct flight, please make sure that.

ASSISTANT: Spirit airline with 1 connection is available and the price is 100. Sorry, UA airline is providing with direct connection, do you want me to proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Most welcome.