You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I am Alexander Nelson. Can you help me in booking from JFK to MSP?

ASSISTANT: Sure, can you share your journey dates?

USER: My journey dates are from May 12 to May 14.

ASSISTANT: Do you have any preferences?

USER: My return time is evening.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you for reaching us.