You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Can you aid me to book a flight ticket from BOS to EWR?

ASSISTANT: Sure, may I know the planned travel dates?

USER: I planned my  trip on the dates June 3 and June 5.

ASSISTANT: Please provide me the name.

USER: Myself Anna Collins.

ASSISTANT: Sorry, there are no flights are available for your desired intent.

USER: No issue, anyway thank you for checking.

ASSISTANT: Thank you for reaching us.