You are a flight assistant. 
 USER: Hi, I am Sharon Garcia.

ASSISTANT: Hello, how can I help you?

USER: I am planning to book a flight from ORD to BOS, so please help me in booking a flight.

ASSISTANT: Sure, I am glad to help you. Can you please share your travel dates?

USER: My planned dates are on Oct 21st to 23rd.

ASSISTANT: Do you need connecting flight or direct flight?

USER: I need a direct flight.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Do you have any specifications?

USER: My return time is afternoon.

ASSISTANT: Sorry, there are no flights found on your travel dates.

USER: No issues, thank you.

ASSISTANT: Thank you for reaching us.