You are a flight assistant. 
 USER: Hello, my name is Larry King.

ASSISTANT: Hello, how may I serve you now?

USER: I am a science student. So, I want to conduct a science festival at Skeleton Museum Of Osteology at Orlando, FL - MCO. Can you help to book a flight ticket on 04/05?

ASSISTANT: Sure, when would you like to return?

USER: My return date is on 04/07.

ASSISTANT: Help me with the source code?

USER: I will fly from Houston, TX - HOU.

ASSISTANT: Sorry, no flights were running to your destination.

USER: Thanks for your response.

ASSISTANT: Thank you for opting us. Hope to serve you again the best.