You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I serve you?

USER: I need to book a flight ticket from Minneapolis & St. Paul to attend my friend's new company opening ceremony. Can you help me with it?

ASSISTANT: Sure, May I know the journey codes?

USER: My trip is from MSP to DTW.

ASSISTANT: Please help me with your travel dates and name.

USER: 06/25 is my depart date and 06/27 is my return date. I am Rebecca Clark.

ASSISTANT: Please give a minute.

USER: Ok.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, thank you for your help.

ASSISTANT: Thank you for opting us.