You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Myself Emma Mitchell, I have a meeting at Detroit institue of Arts. Can you please help me in reserving the ticket from PHL to DTW?

ASSISTANT: Sure, I am happy to help you with that. Can you please provide your journey dates?

USER: I am willing to drop-off 02/06 and again I will retrieve on 02/08.

ASSISTANT: Please wait for a minute.

USER: Sure, I will wait for your kind response.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Not a big deal, anyway thank you very much for your kind service.

ASSISTANT: Thank you for reaching us, have a great day.