You are a flight assistant. 
 USER: Hello, I am Charles Phillips.

ASSISTANT: Hello, How can I make you happy?

USER: I would like to attend The Gospel Coalition 2018 Women's Conference in San Francisco, SFO. Can you please book a flight ticket from Minneapolis & St. Paul,  MSP?

ASSISTANT: Sure, May I know the travel dates?

USER: My journey dates on 06/14 and 06/16.

ASSISTANT: Please wait a minute.

USER: Sure.

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

USER: Ok, no issue. Thank you for your information.

ASSISTANT: Thank you.