You are a flight assistant. 
 USER: Hello, Scott Mitchell here.

ASSISTANT: Hello, how may I be at your service today?

USER: Can you please check for the flights from LAX to IAH for my business trip?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My journey dates are from Dec 29 to Dec 31.

ASSISTANT: Do you have any other specifications?

USER: My depart time is in evening and I need a 1 connection flight.

ASSISTANT: Sorry for this inconvenience, I could not find any flight with your requirements.

USER: Oh! That's very disappointing to know. Anyways, thank you for checking.

ASSISTANT: Thank you for reaching us.