You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I am Scott Collins. I would like to book a ticket from MCO to SFO, can you help me?

ASSISTANT: Sure, I am glad to assist you with that. Can you please provide your preferable departure and return dates of travelling?

USER: My travel dates are 10/17 and 10/19.

ASSISTANT: Please wait a moment to check the flights on your route. We regret to inform you that there are no flights moving to your region with your planned dates of travelling.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for reaching us.