You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I guide you today?

USER: I want to book a ticket from DFW to EWR, to visit the place Metropolitan Museum of Art. Can you reserve a seat for me?

ASSISTANT: I am Happy to help you with that, can you please share you travelling dates?

USER: Thank you, my planned dates are from 03/01 and 03/03.

ASSISTANT: Please wait for a moment, I will get back with your flight details.

USER: Sure, take your time.

ASSISTANT: I am sorry to say that there is no flight found under your details. May I know your name please?

USER: It's ok, I will concern another agency to full fill my trip. Sure, I am Cynthia Perez. Anyway, thanks for your information.

ASSISTANT: Thank you for contacting us.