You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Joshua Robinson. Can you please make my reservation from Mar 14 to Mar 16.

ASSISTANT: Sure, please share your airport locations?

USER: Sure, my airport codes are BOS and PHL.

ASSISTANT: Ok, let me know your connection limit?

USER: I need a single connection flight.

ASSISTANT: Any other requirements to be met?

USER: I would like to return in the afternoon.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Sorry, no flights found with your given details.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for opting us.