You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you at this moment?

USER: On the name of Margaret Hernandez, book a ticket to meet my uncle at DFW.

ASSISTANT: Can you please share your travelling dates?

USER: I intend to fly on 10/15 and returns on 10/17.

ASSISTANT: May I know your source airport code?

USER: To reach the destination, I have to fly from Detroit, DTW.

ASSISTANT: There are no flights found on your requested dates.

USER: Fine, I will go with another flight.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.