You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you?

USER: I am Emily Harris. Can you please help me to book a flight ticket from MCO to OAK?

ASSISTANT: May I know your desired dates for this journey?

USER: My journey dates are Mar 5 to Mar 7.

ASSISTANT: Do you have any other requirements?

USER: I would like to depart in the evening.

ASSISTANT: Sorry to say, there are no flights available for your journey.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for connecting with us. Have a nice day ahead.