You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I have  planned to visit Houston city, can you please find a flight ticket from Atlanta?

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

USER: I am willing to travel on the dates of March 22 and March 24.

ASSISTANT: Can you please share your airport codes?

USER: I would like to departure from ATL and landing at IAH airport.

ASSISTANT: Is there any connection preference?

USER: I am looking to travel in a single connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No, I didn't have any more specifications.

ASSISTANT: May I know your name please?

USER: My name is Kevin Williams.

ASSISTANT: Kevin Williams, there are no flights available in your route with your preferences.

USER: It's ok, I will choose some other source to travel. Anyways thank you for your time.

ASSISTANT: Thank you for choosing us.