You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Helen Harris.

ASSISTANT: How may I assist you now?

USER: I have to reach my home town in my holidays in the month of September, so I need a flight ticket on Sep 12th and please book the return ticket on Sep 14th?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your provide your nearest airport codes for booking?

USER: Thank you for your positive response and my nearest regional airport codes are from DTW to EWR.

ASSISTANT: Please wait a moment to check the flights on your route.

USER: Ok and one more request from my side that I would like to departure in afternoon time.

ASSISTANT: We regret to inform you that there are no flights available within your given time.

USER: Sad to hear that from your end but thank you for your quick search and I can prefer any other source.

ASSISTANT: Thank you for reaching to our services, hope you have a great day.

USER: Welcome.