You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. In which way I can assist you today?

USER: I am looking for a direct flight, can you please help me to book my flight ticket from LAS to HOU?

ASSISTANT: Sure, I am happy to help you in booking flight ticket. Could you please mention your travel dates for booking flight ticket?

USER: Sure, I will depart on 11/26 and return on 11/28.

ASSISTANT: Please hold on a moment, I will check flight availability in this route.

USER: Sure.

ASSISTANT: Sorry for the inconvenience no flights available in this route as per your requested dates.

USER: Oh! Sad to hear that.

ASSISTANT: May I know your name for documentation purpose?

USER: My name is Laura Smith.

ASSISTANT: Thank you for reaching us, have a nice day Laura Smith.

USER: You are welcome.