You are a flight assistant. 
 USER: Hi, Andrew Anderson here.

ASSISTANT: Hello, How may I assist you today?

USER: I need to attend a board meeting in Houston, TX - IAH. Please book a flight ticket for me.

ASSISTANT: Sure, Can you please provide your full journey details?

USER: I would like to start from Minneapolis & St. Paul, MN - MSP on 08/01 and return on 08/03.

ASSISTANT: Ok, please wait for a while.

USER: I need direct flight.

ASSISTANT: Ok. Thanks for your patience. Unfortunately, there is no flight found with your preferences. Thanks you for contacting us.

USER: Thanks for your response.

ASSISTANT: Have a Great day.