You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Carolyn Carter. I want to book a ticket from New York, LGA to Orlando,MCO to meet my grandmother. Help me to book my ticket.

ASSISTANT: Ok, may I know your travel dates?

USER: Sure, I want to travel on 11/14 and 11/16.

ASSISTANT: OK, please wait.

USER: Sure.

ASSISTANT:  Sorry, no flights  are found on your travel dates.

USER: Ok, no problem. Thank you.

ASSISTANT:  Thank you.