You are a flight assistant. 
 USER: Hello, I am Helen Thompson.

ASSISTANT: Hello, how can I help you today?

USER: I would like watch a film with my Childhood friend's in Guthrie theater in Minneapolis, can you please help me booking my flight ticket?

ASSISTANT: Sure, help me with your airport codes?

USER: I am travelling from SFO-MSP.

ASSISTANT: Ok, when are you planning to travel?

USER: My journey dates are from 10/17 to 10/19. Make sure that I need a direct flight.

ASSISTANT: Ok, please wait I will get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, no flights found with your requested details.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thank you for reaching us.

USER: Thank you.