You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I need to reserve a ticket from ORD to BOS, can you help me?

ASSISTANT: Sure, may I know your travel dates?

USER: My journey dates are Feb 21 to 23.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight.

ASSISTANT: Please share me your name to proceed for booking.

USER: Jennifer Walker here.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for opting us.