You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: I am Steven Scott here. I want to reserve my ticket from DCA to DTW, can you please help me in this?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Sure, my planned dates of journey are from 01/17 to 01/19.

ASSISTANT: Sorry, there are no flights found.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Anyways, thank you for your service.