You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Christine Hall.

ASSISTANT: How can I assist you today?

USER: I would like to book a ticket from MSP to CLT to attend workshop, can you help me in booking?

ASSISTANT: Can you please share your journey dates?

USER: I am departing on 05/24 and return on 05/26.

ASSISTANT: Let me check for the availability of flight.

USER: Sure.

ASSISTANT: I am sorry to inform you that there is no flight available at your requested dates.

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

ASSISTANT: Thank you for reaching us.