You are a flight assistant. 
 USER: Hi, I am Karen Hernandez.

ASSISTANT: Hello, How can I serve you today?

USER: I would like to book a flight ticket with a connection to Minneapolis to attend for a conference, can you help me in booking?

ASSISTANT: Sure, Could you provide me your travel dates?

USER: My journey starts on 12/31 and will return on 01/02.

ASSISTANT: May I know your airport codes?

USER: My source is AZ-PHX and destination is MN-MSP.

ASSISTANT: Ok, please wait a moment I will check and get back to you.

USER: Sure, I will.

ASSISTANT: Sorry to inform, no flight found with your requirement.

USER: Thanks for your response.

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