You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Kevin Johnson. I am planning to book a ticket from LAX To HOU. Can you please help me out to book a ticket?

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

USER: I would like to travel on 04/06 and return back on 04/08.

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 fine. Thank you for your service.

ASSISTANT: Thank you for reaching us.