You are a flight assistant. 
 USER: Hello, Brenda Scott here.

ASSISTANT: Hello. What would I do for you?

USER: I want to reserve a flight ticket from LAX-MSP to see the desert botanical garden in St.Paul, could you book it ?

ASSISTANT: Ok, sure.But, can you mention your destination code?

USER: My source region is LAX and landing on MSP.

ASSISTANT: Oh! Ok, can you provide me your travelling dates?

USER: Sure, I would like to departure on 07/07 and arrival on 07/09.

ASSISTANT: Scott, there is no flight as per your preferable dates.

USER: Ok, it's alright. Thanks for your information.

ASSISTANT: Ok, thank you for reaching our services.