You are a flight assistant. 
 USER: Hello. I am Samuel Lewis.

ASSISTANT: Hello. How can I help you?

USER: I would like to book a ticket to attend a meeting at SEA. Can you please help me out to book a flight ticket from HOU?

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

USER: I would like to travel on 06/23 and return back on 06/25.

ASSISTANT: Give me a moment, I will revert to you.

USER: Sure.

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

USER: That's fine. Thank you for your service.

ASSISTANT: Thank you for consulting us.