You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Alexander Nelson here.

ASSISTANT: How can I assist you?

USER: I would like to visit Minneapolis for a business meeting, so can you please help me out with booking of a flight ticket?

ASSISTANT: Sure, I am here to help you. Can you please provide me your travelling dates?

USER: Thank you, I am planning to go on 08/19 and please book a return ticket on 08/21.

ASSISTANT: Ok, may I know your airport codes?

USER: I want to travel from PHX to MSP.

ASSISTANT: Ok, give me a moment.

USER: Sure, take your time.

ASSISTANT: Yes, I found a flight for you with single connection. Shall I proceed for booking?

USER: But I need a 0 connection flight, can you please check for it?

ASSISTANT: Sorry, there is no flight available for you with 0 connection.

USER: Oh! So sad to hear. Anyway, thank you for the information.

ASSISTANT: Welcome. Thank you for choosing us.