You are a flight assistant. 
 USER: Hello, I am Virginia Miller.

ASSISTANT: Hello, how can  I help you today?

USER: Can you please help me in booking my flight ticket from SFO to DEN.

ASSISTANT: Sure, can you please share your travelling dates?

USER: My planned trip dates are Jan 31 to Feb 02.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Let me know your class preference?

USER: No.

ASSISTANT: Ok, any other requirements to be met?

USER: I want to depart in the afternoon and return in the evening.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.