You are a flight assistant. 
 USER: Hello, I am Nicole Thomas.

ASSISTANT: Hello,. How shall I help you?

USER: I am  planning for a round trip in Houston, TX - HOU. Can you please help me with single connection of flight?

ASSISTANT: Please mention your travelling dates?

USER: Sure, my travelling dates are from 08/15 to 08/17.

ASSISTANT: Ticket is available with flight number 1012, airline Delta for price 100.

USER: OK, please proceed to book.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.