You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Alexander Rodriguez. I am planning to travel from OAK to MCO to meet my uncle, can you help me in booking?

ASSISTANT: Sure, please tell me your travelling dates.

USER: My departure travel date is on 08/04 and return on 08/06.

ASSISTANT: Sorry, there is no plane on your requested travelling dates.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for consulting us, have a great day.