You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Patrick Wilson, want to travel from MCO to EWR. Please help me in booking my ticket.

ASSISTANT: Sure, I will help you to book a flight ticket. Can you please share me your travelling dates?

USER: Thank you and my travelling dates are from 08/17 to 08/19.

ASSISTANT: Please give me a moment.

USER: Sure.

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

USER: It's ok, thank you for your help.

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