You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: My name is Andrew Adams, can you help me to book a flight ticket from DTW to ORD?

ASSISTANT: Sure, can you please share your planned travel dates?

USER: Ok, please can you book for the dates Dec 1st and 3rd respectively.

ASSISTANT: Do you have any airline preference?

USER: Not planned any airlines specificly.

ASSISTANT: May I know your departure and arrival timings?

USER: Yes, I need a flight which depart during afternoon. Please check for a connecting flight.

ASSISTANT: Andrew Adams, no flights has been found on your planned travel dates.

USER: That's ok, thank you for assisting me.

ASSISTANT: Thank you for choosing us.