You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I'm Stephanie Lewis.

ASSISTANT: Yes, Lewis.

USER: I am planning to travel from PHX to MSP for a convocation meeting, can you please help me with booking a flight ticket?

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, my departure date is on 05/08 and return date is on 05/10.

ASSISTANT: Sorry Lewis, no flights in your required details.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.