You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Justin Davis.

ASSISTANT: How may I guide you today?

USER: I want to book a ticket from CLT to EWR to attend seminar, can you help me in booking?

ASSISTANT: I am happy to help you with that.

USER: Thank you.

ASSISTANT: Can you please share your preferable journey dates?

USER: I am departing on 03/27 and return on 03/29.

ASSISTANT: Please wait for a minute.

USER: Sure.

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

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for reaching us.