You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Kathleen Gonzalez here. I would like to book a ticket from LAS to MSP, can you please help me with that?

ASSISTANT: Ok, may I know your travelling dates please?

USER: The travel dates are from 06/27 to 06/29.

ASSISTANT: Sorry, no flights are available for your requirements.

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

ASSISTANT: Thank you for reaching our agency.