You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am James Baker. I am planning to visit Disney Land at Los Angeles, could you please help me with booking a flight ticket?

ASSISTANT: Sure, may I know your travelling dates?

USER: I would like to take off on 12/05 and return on 12/07.

ASSISTANT: Kindly provide your journey codes.

USER: My nearest source airport code is IAD and destination airport code is LAX.

ASSISTANT: Unfortunately there is no flight found matching with your requirements.

USER: That's ok, I will find an another alternate way to complete my trip. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching us.