You are a flight assistant. 
 USER: Hi, I am Christine Jones.

ASSISTANT: Hello, how may I provide assistance for you?

USER: I need a direct flight from Philadelphia to attend the emergency meeting with my boss. Can you help me?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your depart date?

USER: It's 12/20, I choose to start my journey.

ASSISTANT: Please, share your fare limit.

USER: I can bare an amount of 5000.

ASSISTANT: Please, share the airport code of Philadelphia.

USER: Philadelphia, PHL is source airport code.

ASSISTANT: Can I have your arrival date?

USER: I will arrive on 12/22.

ASSISTANT: Kindly, mention your destination airport code.

USER: Destination is Orlando, MCO.

ASSISTANT: Thank you for sharing your journey details. Please, hold on.

USER: Ok.

ASSISTANT: Thank you for your precious time.

USER: Ok.

ASSISTANT: We are sorry to inform you that, no direct flights are available in your journey routes.

USER: Ok, Thanks for the quick response.

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