You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Jack Hernandez, want to travel from MCO to OAK. Please help me in booking my ticket.

ASSISTANT: Sure, let me know your travelling dates.

USER: Sure, my travelling dates are from 12/24 to 12/26.

ASSISTANT: Please share your connection limit.

USER: I need a connecting flight.

ASSISTANT: Do you have any specifications?

USER: Make sure, my departing time should be in the afternoon and I want to travel in economy class.

ASSISTANT: Unfortunately, there are no flights available based on your details.

USER: It's ok, thank you.

ASSISTANT: Thank you for choosing us.