You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you for today?

USER: I am Janet Hill. I need to meet my friends from SFO to DEN for attending a event. Could you please help me with booking a flight ticket?

ASSISTANT: Yes, I can help you. Can you tell me your travelling dates?

USER: My travelling dates are Oct 13 and Oct 15.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for reaching us.