You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you at this moment?

USER: Please book me a flight ticket from MSP to LAS to meet my family.

ASSISTANT: Sure, assist me with your travelling dates.

USER: I have planned to travel on June 27th and return on June 29th.

ASSISTANT: Ok, do you have any connection preferences?

USER: I prefer direct flight.

ASSISTANT: Ok, any time concern do you have?

USER: I am ok with any time.

ASSISTANT: Any other specifications do you have?

USER: No, thank's.

ASSISTANT: Can I know your name?

USER: Myself Deborah Scott.

ASSISTANT: OK, please wait a moment.

USER: Ok.

ASSISTANT: Based on your given specifications we do not found any flight in airline database.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for reaching us.