You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am Patrick Hall and I want to attend my live concern at Phoenix, AZ-PHX on 10/18 from Minneapolis & St. Paul, MN-MSP.

ASSISTANT: Could you please send me your return date?

USER: My return date would be 10/20.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patient. There are no flights found  as per your requirements.

USER: Thank you for service.

ASSISTANT: Thank you for contacting us.