You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Myself Stephen Smith. Can you please help me in booking a flight ticket from IAH to DFW locations?

ASSISTANT: Ok, can I have your trip dates?

USER: My travelling dates are from 05/12 and 05/14.

ASSISTANT: Please wait for a moment, while I search for the flight.

USER: Ok.

ASSISTANT: There is a direct flight for you, is it ok with you?

USER: Can you please check with 1 connection of flight?

ASSISTANT: Ok, let me check.

USER: Ok.

ASSISTANT: Sorry, there is no flight for you with your preferences.

USER: It's ok. Thank you for the information.

ASSISTANT: Welcome.