You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Helen Perez. I am planning to attend music concert at LAX, can you please help me with booking a flight ticket from DFW?

ASSISTANT: May I know your desired travel dates please?

USER: Sure, I would like to depart on Dec 28 and return on Dec 30.

ASSISTANT: Do you have any specifications?

USER: I would like to depart during evening time.

ASSISTANT: There is a connecting flight with number 1018 in airline Frontier, the fare is 100.

USER: Yes, please proceed with the booking.

ASSISTANT: Can I book it? Your ticket is reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.