You are a flight assistant. 
 USER: Hi, I am Jason Adams.

ASSISTANT: Hello, how can I help you?

USER: I am planning to attend my friends birthday party at Detroit, MI - DTW.

ASSISTANT: Ok.

USER: Can you help me to book a direct flight?

ASSISTANT: Sure, may I know your travelling dates?

USER: I want to fly on 12/01 and recur on 12/03.

ASSISTANT: Could you please help me with your source code?

USER: I will start from Philadelphia, PA - PHL.

ASSISTANT: Sorry, no flights found on your requested dates.

USER: Ok, no issues.

ASSISTANT: Thank you for approaching us.

USER: Thanks for your quick response.