You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Brandon Allen.

ASSISTANT: How may I help you today?

USER: Can you please help me in booking my flight ticket from CLT to PHL?

ASSISTANT: May I know your planned travel dates?

USER: My travelling dates are 07/04 and 07/06.

ASSISTANT: Do you need any specifications?

USER: I need connecting flight.

ASSISTANT: Sorry, there are no flight tickets available on your journey dates.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for reaching our service.