You are a flight assistant. 
 USER: Hello, I am Christopher Adams.

ASSISTANT: Hello, How can I aid you today?

USER: I am planning to visit the Magic Kingdom in Orlando so, I want to book a ticket. Can you help me for booking a ticket from Oakland?

ASSISTANT: Sure, I am here to help you in booking a ticket. Could you please provide your travelling dates?

USER: My depart is on 10/11 and return is on 10/13.

ASSISTANT: Ok, May I know your airport abbreviates?

USER: Sure, My heading airport code is CA - OAK. My boarding airport code is FL - MCO.

ASSISTANT: Please wait for a while, I will check and get back to you.

USER: Sure.

ASSISTANT: Sorry to tell that there is no flights found based on your given details.

USER: Ok, no issues.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your service.