You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How may I aid you?

USER: I am planning to go Magic Kingdom Park with my family. Please help me to book a flight ticket.

ASSISTANT: Let me know your name?

USER: Linda Smith here.

ASSISTANT: Sure, I will help you. Can you provide your travelling dates?

USER: I need to fly on 04/04 and 04/06.

ASSISTANT: May I know your airport codes?

USER: Travelling codes are DTW-MCO.

ASSISTANT: Thanks for waiting. There is no flight available with your specified dates.

USER: No problem, Thanks for the service.

ASSISTANT: Ok, Thank you.