You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I'm Laura Gonzalez. I need a ticket from Detroit DTW .

ASSISTANT: Please provide your name? Kindly, provide return travelling details also.

USER: My destination is Chicago ORD. I like to go on 09/09 and come back on 09/11.

ASSISTANT: Could you please help me out with the dates? OK. Please wait a minute. Sorry, I could not find any flight.

USER: Thank you.