You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Frank Edwards here. Can you help me to find a flight from SEA to LAS?

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

USER: My travelling dates are 09/19 and 09/21.

ASSISTANT: Give me a moment.

USER: Sure.

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

USER: That's not a issue, thanks for your information.

ASSISTANT: Thank you for contacting us.