You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I am Emily Moore. I would like to book a ticket from ORD to DTW, can you please help me out?

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

USER: I am travelling on these dates 04/12 and 04/14.

ASSISTANT: Please wait for a minute.

USER: Sure.

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

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for reaching us.