You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I want to make a flight ticket reservation from LGA to ATL, can you please help me?

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, my planned travelling dates are Jul, 23 and 25 respectively.

ASSISTANT: Do you need any specifications?

USER: Flight has to be with single connection.

ASSISTANT: On which name shall I reserve flight ticket.

USER: Sure, my name is Ryan Williams here.

ASSISTANT:  Sorry, there are no flights found on given dates.

USER: Ok, not an issue.Thank you for your information.

ASSISTANT: Thank you for reaching our service.