You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please be my helping hand for booking a flight ticket to SFO from my home town IAH?

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: Do you prefer a connecting flight or a direct flight?

USER: I need a connected flight.

ASSISTANT: On what dates, you would like me to book a ticket?

USER: I would like to travel on Dec 20 and 22.

ASSISTANT: Ok, please specify your name.

USER: Sharon Martin here.

ASSISTANT: Do you have any other concerns to meet?

USER: No.

ASSISTANT: We found a connecting flight with a cost of 200 in Delta Airlines, shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Ok, I have confirmed your ticket in economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.