You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you from my end?

USER: I am Larry Adams, can you help me to book a flight ticket from PHL to DTW?

ASSISTANT: I am here to help you out. Please share me your trip dates to check an enhanced flight in your route.

USER: Yes, my travel dates of my journey is 03/14 and return date is 03/16.

ASSISTANT: Please wait a moment.

USER: That's ok.

ASSISTANT: Regard to say that, there is no flight in your route.

USER: Thank you for searching.

ASSISTANT: Thank you for reaching us.