You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I need to book a direct flight to meet my Granny, so help me in booking a ticket.

ASSISTANT: Sure, may I know your airport codes?

USER: It's a round trip to Minneapolis & St. Paul, MN - MSP.

ASSISTANT: When would you willing to travel?

USER: My journey dates are 02/20 to 02/22.

ASSISTANT: There is no flight on your details.

USER: That's Ok.

ASSISTANT: Thank you so much for choosing us. May I know your name.

USER: Sure, my name is Kenneth Collins.

ASSISTANT: Thank you.

USER: Thanks for your support.