You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Michelle Allen here.

ASSISTANT: How can I guide you today?

USER: I would like to book a ticket from DFW to MCO, can you please help me with that?

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: The travel dates are from 09/15 to 09/17.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, no flights are available on your route.

USER: It's ok, thanks for your information.

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