You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I'm Matthew Edwards here.

ASSISTANT: Edwards, how can I assist you today?

USER: I want to travel from GA-ATL to NV-LAS, can you please help me to book a ticket?

ASSISTANT: Sure, could you please provide me your trip dates?

USER: Sure, my dates of trip is from 02/14 to 02/16.

ASSISTANT: Please wait, let me check for the available flights to LAS.

USER: Sure.

ASSISTANT: Sorry Edwards, there are no flights available to LAS on 02/14.

USER: Ok, no problem.

ASSISTANT: Would you like to travel on some other date?

USER: No, thank you for your information.

ASSISTANT: Thank you for contacting us, have a nice day.