You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Carolyn Young.

ASSISTANT: How can I assist you?

USER: I want to book a ticket from LAS to MSP to attend seminar, can you help me in booking?

ASSISTANT: Sure, may I know your planned journey dates please?

USER: I am departing on 09/11 and return on 09/13.

ASSISTANT: Please wait a moment.

USER: Sure, take your time.

ASSISTANT: There are no flights available at this moment.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for contacting us.