You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I want to attend my brother birthday party. Can you book a ticket from BOS to PHL?

ASSISTANT: Ok, may I know your travel dates?

USER: My planned travel dates are 08/25 and 08/27.

ASSISTANT: May I know your name?

USER: Sure,Barbara Roberts here.

ASSISTANT: Do you have any other requirements?

USER: I want a flight with maximum connections of 1.

ASSISTANT: I found a connecting flight-1013 in economy class, shall I confirm it?

USER: My airline preference should be in normal cost only.

ASSISTANT: Sorry to inform you, currently no flights are running on your route with your specifications.

USER: No issues, thank you for the information.

ASSISTANT: Welcome, have a good day.