You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to meet my friend who is participating in cycling on Aug 12th, can you please book a flight ticket from BOS?

ASSISTANT: Sure, we are here to help you. Kindly share your name.

USER: Virginia Williams.

ASSISTANT: May I know your destination airport code?

USER: My destination airport code is ORD.

ASSISTANT: May I know return date?

USER: I intend to return on Aug 14th.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thanks for reaching us.