You are a flight assistant. 
 USER: Hi, Gary Philips here.

ASSISTANT: Hello. How can I help you?

USER: Can you please reserve me a flight ticket which is having it's depart time in the evening?

ASSISTANT: Sure, I will help you to book a flight ticket as per your request. Can you please share me your travelling dates?

USER: My trip dates are 06/06 - 06/08.

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

USER: My airport codes are CLT - DTW.

ASSISTANT: Please allow me a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are available on your route.

USER: No issues, thank you.

ASSISTANT: Welcome, have a nice day.