You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Mary Jones.

ASSISTANT: How can I aid you?

USER: I want to travel from LAS to DFW, could you help me in booking the ticket?

ASSISTANT: May I know your travel dates?

USER: It's from 04/30 to 05/02.

ASSISTANT: Give me a minute. The flight 1012 of Frontier airlines is available on your request. Shall I book the ticket?

USER: Please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: You are welcome.