You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Ruth Roberts. I am planning a holiday trip to MSP, can you help me in booking a ticket from SFO?

ASSISTANT: Sure, can you please share your travel dates?

USER: My planning dates are from 05/31 to 06/02.

ASSISTANT: Ok, let me check for the availability of flight.

USER: Sure, suggest me a best airlines.

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

USER: That's fine. Anyway, thank you for your help.

ASSISTANT: You are welcome. Thank you for reaching us.