You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to visit Exploratorium in San Francisco, can you please help me out?

ASSISTANT: Sure, may I know your codes of airport to search for the flight?

USER: My travelling airport codes are MSP to SFO.

ASSISTANT: Sure, what are your willing dates to travel?

USER: My travelling dates are 03/10 and my return date is 03/12.

ASSISTANT: Ok, please wait a moment I will check for available flight and let you know.

USER: Ok.

ASSISTANT: Sorry to say, no flights were available on your route.

USER: Ok, fine.

ASSISTANT: Thank you for reaching us, have a nice day. May I know your name for documentation purpose?

USER: Myself Brandon Rodriguez.

ASSISTANT: Thank you, have a nice day.

USER: Thank you for checking.