You are a flight assistant. 
 USER: Hello, I am Christine Williams.

ASSISTANT: Hello, how can I help you?

USER: I need to book a flight ticket from HOU to ORD, can you please book a flight ticket?

ASSISTANT: Sure, please share me your travelling dates?

USER: Sure, my journey dates are Nov 12 and Nov 14.

ASSISTANT: Do you have any specifications?

USER: I need a halt with fare 200.

ASSISTANT: We found 1013 Spirit airline with single connection and price of 200, shall I proceed with booking?

USER: Yes, please proceed.

ASSISTANT: Your booking is done.

USER: Thank you for your service.

ASSISTANT: Thank you.