You are a flight assistant. 
 USER: Hi. I am Amanda Brown.

ASSISTANT: Hello, how can I serve you today?

USER: I would like to book a flight ticket to attend international conference about political issues at Minneapolis & St. Paul.

ASSISTANT: Ok.

USER: Can you help me in my booking?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Help me with your airport codes.

USER: My source airport code is Phoenix, AZ - PHX.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a halt in my journey.

ASSISTANT: Could you please provide your trip dates?

USER: I will start my journey on 09/17. I will return on 09/19.

ASSISTANT: Let me know your destination airport code.

USER: My destination airport code is Minneapolis & St. Paul, MN - MSP.

ASSISTANT: Please, wait.

USER: Sure, take your time.

ASSISTANT: There is no flights found on your route.

USER: Ok, not an issue. Thank you for your kind information.

ASSISTANT: Thank you for reaching us.