You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Daniel Clark.

ASSISTANT: How can I help you today?

USER: I am planning to book a ticket to attend a music event at PHL. Can you please help me out to book a ticket from EWR?

ASSISTANT: Please tell me your preferred dates of travelling.

USER: I am planning to travel on 06/28 and return back on 06/30. Make sure my connection limit is 1.

ASSISTANT: Sorry, no connecting flight is available for you.

USER: That' s fine.

ASSISTANT: You are welcome, have a great day.

USER: Thank you for your service.