You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What help do you require from our agency?

USER: Can you please help me in booking my flight ticket from DFW to SEA?

ASSISTANT: Sure, I am here to help you. Can I know your travel dates?

USER: Sure, my trip dates are from 11/25 to 11/27.

ASSISTANT: Ok, please tell me your airlines preference.

USER: Nothing, only I need a single connecting flight.

ASSISTANT: May I know your name please?

USER: Myself Brandon Jackson.

ASSISTANT: Ok, please tell me your other preferences.

USER: Nothing.

ASSISTANT: Sorry, there are no flights found in this route on the dates you have given.

USER: No problem, thank you for the information.

ASSISTANT: Most welcome. Thank you for choosing us.