You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Emma Garcia.

ASSISTANT: How may I provide you service?

USER: Can you help me in booking from MSP to DFW?

ASSISTANT: Emma Garcia, may I know your travelling dates for this journey?

USER: My trip dates are 12/26 to 12/28.

ASSISTANT: Can you please wait for a moment till I check with your reservation?

USER: Ok.

ASSISTANT: Sorry to inform you, there is no flight available on your requested route.

USER: No issue, thank you.

ASSISTANT: Thank you for consulting with our services. Have a great day ahead.