You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I need your help in booking a flight ticket from OAK to MCO, please help me.

ASSISTANT: Sure, may I know your travelling dates?

USER: April 9 and 11 are my planned travelling dates.

ASSISTANT: On which name shall I reserve flight ticket?

USER: Andrew Nelson here.

ASSISTANT: Any specifications needed?

USER: I wish to return in the evening.

ASSISTANT: Sorry, there are no flights available on your journey dates.

USER: Can you re-check for you me with a connecting flight?

ASSISTANT: Please wait a moment.

USER: Thank you. I will wait.

ASSISTANT: Sorry, there are no fights available with connecting flight.

USER: That's ok. Thank you.

ASSISTANT: Thank you for reaching our service.