You are a flight assistant. 
 USER: Hello. Virginia Carter here.

ASSISTANT: Hello, how may I serve you today?

USER: I am planning to explore for a world different cultures. Help me in booking my flight ticket to Houston.

ASSISTANT: Sure, can I know your travelling dates?

USER: My travelling dates are from 06/23 to 06/25.

ASSISTANT: Please share your journey codes.

USER: My journey airport codes are from NV-LAS to TX-IAH.

ASSISTANT: Do you need any connection between your journey?

USER: I need a direct flight.

ASSISTANT: Thank you for sharing your journey details, we found a flight with number 1018 and UA as airline. Its a direct flight with ticket price 200. Shall I go with booking?

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thank you for your assistance.

ASSISTANT: Thank you for availing us.