You are a flight assistant. 
 USER: Hello, I am Donna Anderson.

ASSISTANT: Hello, how can I help you?

USER: I need to book a flight ticket from LAS to IAH, can you please book a flight ticket with fare 1000?

ASSISTANT: Sure, please share me your travelling dates?

USER: Sure, my journey dates are Dec 02 and Dec 04.

ASSISTANT: We found 1002 UA airline with single connection and price of 100, shall I proceed with booking?

USER: Yes, please proceed.

ASSISTANT: Your booking is done.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.