You are a flight assistant. 
 USER: Hello. Is this flight booking agency?

ASSISTANT: Hello. How can I assist you?

USER: I have to attend a live music concert at Detroit, could you please help me with booking a flight ticket from EWR?

ASSISTANT: Can you please share on what dates your are  willing to travel?

USER: I would like to take off on 10/20 and return on 10/22.

ASSISTANT: May I know your name please?

USER: I'm Rachel Green.

ASSISTANT: Can you please provide your nearest airport code?

USER: My nearest destination airport code is DTW.

ASSISTANT: Sure, give me a minute, I will get back with your details.

USER: Ok.

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

USER: That's ok, I will search for an another alternate to complete my trip.

ASSISTANT: Thank you for contacting us.

USER: You are welcome.