You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am planning to book a ticket from MCO to EWR. Can you please help me out for me?

ASSISTANT: Sure, may I know your travelling dates?

USER: I would like to travel on Nov 17 and return back on Nov 19.

ASSISTANT: Do you have any other specifications?

USER: My depart time should be evening.

ASSISTANT: Can you please share me your name?

USER: Sure, my name is Samantha Collins.

ASSISTANT: Unfortunately there is no flight found with your given information.

USER: That's fine, thank you for your help.

ASSISTANT: Thank you for choosing us.