You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Catherine Miller.

ASSISTANT: What can I do for you at this moment?

USER: I want to book a flight from AUS to LAS. Could you help me?

ASSISTANT: Sure, please help me with providing your travelling dates?

USER: My preferable dates are from 06/17 to 06/19.

ASSISTANT: Ok, do you have any other specifications?

USER: I need 1 connection flight.

ASSISTANT: There is a UA airline with fare of 100 matches your schedule. Shall I proceed with booking?

USER: Yes, you can proceed.

ASSISTANT: Your ticket has been reserved with flight number 1008.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.