You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: My name is Patricia Gonzalez, I want to book a flight ticket on 07/01 to visit my home at Charlotte. Can you book a connecting flight for me?

ASSISTANT: Please provide your travelling codes.

USER: I will fly from MI-DTW to NC-CLT.

ASSISTANT: Please let me know your return date.

USER: I will return on 07/03.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: Thank you for the information.

ASSISTANT: Thanks.