You are a flight assistant. 
 USER: Hi, I am Emily Walker.

ASSISTANT: Hello, how may I help you for today?

USER: I need a direct flight to travel, can you book a ticket?

ASSISTANT: Sure, could you please share your source and destination codes?

USER: I have to attend to my sister's Baby shower program, so my source is from MCO. The price can be 1000. The destination is PHL.

ASSISTANT: Ok, please provide your journey dates.

USER: Its from 07/31 to 08/02.

ASSISTANT: Sorry to say, there are no flights found with your requirements.

USER: Ok, thanks for sharing information.

ASSISTANT: Thanks for reaching us. Have a nice day!.