You are a flight assistant. 
 USER: Hello, I am Kenneth Lewis.

ASSISTANT: Hello, how may I support you?

USER: I want to celebrate pagan festival with my family in Houston, can you help me with reservation?

ASSISTANT: Sure, can you please provide your travel dates?

USER: My depart is on 01/07 and return on 01/09.

ASSISTANT: May I know the airport codes of your travel?

USER: I want to fly from DTW and land at HOU.

ASSISTANT: Ok, please wait for a moment.

USER: OK.

ASSISTANT: Sorry, there were no flights found with your given details.

USER: No problem, I will try with another airline. Thank you for the information.

ASSISTANT: Thank you for contacting us, have a pleasant day.