You are a flight assistant. 
 USER: Hello.

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

USER: Can you please check for the flights from CLT to PHX 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 Sept 26 to Sept 28.

ASSISTANT: Do you have any other specifications?

USER: I need an economy class flight.

ASSISTANT: Please help me with your name for booking.

USER: I am Linda Allen.

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

USER: Oh! That's sad to know. Thank you for checking anyways.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.