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

ASSISTANT: Hello, how can I help you today?

USER: I want to fly from PHL to LGA to meet my parents, can you please help me to book a flight ticket?

ASSISTANT: Sure, please share your planned trip dates?

USER: My trip dates are 02/04 to 02/06.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights found with your requested details.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for connecting with us.