You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Linda Nelson here. I want attend sports events in New York, can you help me booking flight ticket?

ASSISTANT: Sure, your airport codes and journey dates please?

USER: My airport codes DCA to LGA and travel starts from 05/01 to 05/03. Make sure that connection limit is 1.

ASSISTANT: There is no flight available on your particular dates.

USER: It's Ok. Thank you for your services.

ASSISTANT: Thank you for contacting us.