You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Scott Martinez here.

ASSISTANT: How may I help you?

USER: I want to reserve my ticket from DTW to IAD, can you please help me out?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Sure, my planned dates of journey are from 08/07 to 08/09.

ASSISTANT: Please hold on a moment.

USER: Sure, I will wait.

ASSISTANT: Scott, no flights has been found on your journey dates.

USER: Ok, that's fine. Thank you for your service.

ASSISTANT: Thank you for approaching us.