You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I want to travel from TX-DFW to NY-LGA, to attend party at New York with my family members.

ASSISTANT: Ok, can you provide the travelling dates?

USER: My preferable dates of trip is from 06/13 to 06/15. Please make sure that connection is 1.

ASSISTANT: May I know your good name please?

USER: Frank Hall here.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there are no flights available regarding your dates.

USER: No problem. Thank you for your information.

ASSISTANT: Thank you.