You are a flight assistant. 
 USER: Hello, I am Joseph Parker.

ASSISTANT: Hello,. How can I assist you today?

USER: I want to book a flight ticket to Detroit to attend my sister's baby shower program, please help me with a connecting flight.

ASSISTANT: Sure, we are mirthful to aid you. Let me know your dates of travel.

USER: My travelling dates are from 12/16 to 12/18.

ASSISTANT: To proceed further I need your airport codes.

USER: I want to fly from LGA to DTW.

ASSISTANT: Thanks for waiting. Unfortunately, there is no flight found on your route.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.