You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am Elizabeth Campbell here, I want to reserve my ticket from MCO to DFW, can you please help me?

ASSISTANT: Sure, I am here to help you out with that. May I know your travelling dates please?

USER: Sure, my planned dates of journey are from 01/25 to 01/27.

ASSISTANT: Sorry Campbell, there are no flights in this route as per your travelling details.

USER: Ok, that's fine. Anyways, thank you for your service.

ASSISTANT: Thank you for approaching us.