You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jason Wilson here.

ASSISTANT: How can I assist you today?

USER: I want to attend my retirement father's function at Houston. Could you book my ticket from New York?

ASSISTANT: Sure, can you please share your travel dates?

USER: My itinerary dates are 05/20 and 05/22.

ASSISTANT: Could you please help me with the airport codes?

USER: My genesis and terminus airport codes are JFK and HOU.

ASSISTANT: Let me check for the availability of flight.

USER: Sure.

ASSISTANT: Jason, there is a flight available with 2 connections. Is that ok for you?

USER: I need a connecting flight.

ASSISTANT: I am sorry to inform you that there is no flight available at your request.

USER: No problem, thank you for the help.

ASSISTANT: Thank you for contacting us.