You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Paul Allen.

ASSISTANT: How may I assist you today?

USER: I am planning to attend music concert at ATL, can you please help me with booking a flight ticket from MSP?

ASSISTANT: Sure, let me know your trip dates please?

USER: Sure, I would like to take off on July 29 and return on July 31.

ASSISTANT: Do you have any specific depart and arrival timings?

USER: I would like to depart during evening time.

ASSISTANT: Ok, is there any class preference?

USER: No, but I need a flight with 1 connection.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: Sorry to inform you that there are no flight services available on your given details.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thanks for reaching us, have a nice day.

USER: You are welcome.