You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Andrew Walker here.

ASSISTANT: How can I assist you at this moment?

USER: Sure, I want to reserve my ticket from ATL to MSP, can you please help me to book a ticket?

ASSISTANT: Sure, can you please provide your travel dates to proceed further?

USER: Ok, my dates of journey is from 02/10 to 02/12.

ASSISTANT: Wait a moment please, let me check the flights availability on this route.

USER: Sure, I will wait for your response.

ASSISTANT: Andrew Walker, there are no flight services available on this route on your provided dates.

USER: Ok, no problem.

ASSISTANT: Thank you for utilising our service.

USER: Anyways, thank you for your service.