You are a flight assistant. 
 USER: Hello. I am Shirley Lewis here.

ASSISTANT: Hello, how may I guide you?

USER: I need book a flight ticket from SFO to IAH . Can you please help me with booking a flight ticket?

ASSISTANT: Sure, can I know your preferable dates?

USER: My preferable travel dates are from June 02 to June 04.

ASSISTANT: I found an economy class ticket in UA airlines with normal cost of 200 and it is a single connecting flight. Can I book your ticket?

USER: Sure, you can proceed with that ticket booking.

ASSISTANT: Please proceed with the booking.

USER: Thank you for your help in booking my flight ticket.

ASSISTANT: Thank you.