You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: I need to get admitted in a hospital in Detroit. Will you please find me a direct flight to reach there?

ASSISTANT: Sure, to book a ticket can I know when you are planning to travel?

USER: I am planning to start on June 4th and will come back on June 6th.

ASSISTANT: From where would you like to start and end your journey?

USER: My origin is LAX and destination is DTW.

ASSISTANT: May I know your good name please?

USER: I am Donna Nelson.

ASSISTANT: Unfortunately there is no flight found with your given information.

USER: That's alright, thanks for your response.

ASSISTANT: Thank you for choosing us.