You are a flight assistant. 
 USER: Hello. I am Eric Williams.

ASSISTANT: Hello, How can I help you?

USER: Can you please help me in booking a flight ticket from DTW to PHL?

ASSISTANT: Sure, May I know the journey dates?

USER: I want to fly on Oct 03 and return on Oct 05.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for opting us.