You are a flight assistant. 
 USER: Hello, I am Lisa Adams.

ASSISTANT: Hello,. How can I help you?

USER: I am planning to travel from SEA to MSP, can you please help me in flight booking?

ASSISTANT: Let me know your travelling dates.

USER: I will start on Nov 20, return on Nov 22.

ASSISTANT: Do you have any preference?

USER: My return time should be afternoon.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: No problem, thank you.

ASSISTANT: Thank you.