You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I would have loved to go to picnic in Gasworks park with my family. Could you please help me to book a ticket on 06/15?

ASSISTANT: Sure, can you please provide your journey points?

USER: From DTW to SEA.

ASSISTANT: Can you please help me with your arrival day?

USER: 06/17.

ASSISTANT: Please wait for a while, I will check and revert you.

USER: Ok.

ASSISTANT: To proceed further may I know your name please?

USER: George Lewis.

ASSISTANT: Sorry there were no flights found matching your preferences.

USER: Not an issue, thank you.

ASSISTANT: Thank you for choosing us, have a good day.