You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jack Miller.

ASSISTANT: How may I assist you today?

USER: I am looking for a direct flight, could you please help me with booking a flight ticket with my requirement?

ASSISTANT: Sure, may I know your travelling airport codes?

USER: I would like to travel from DTW to MSP.

ASSISTANT: Please mention your travelling dates?

USER: I would like to depart on Apr 2nd and return on Apr 4th.

ASSISTANT: Please wait a moment.

USER: Sure, take your time. And make sure that my airline is normal-cost.

ASSISTANT: Sorry, there are no flight tickets available on your journey dates.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching our service.