You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I would like to visit Charlotte for my client meeting, can you please book my flight ticket from DCA to CLT?

ASSISTANT: Sure, may I know your travel dates?

USER: I will depart on Dec 8th and return back on Dec 10th.

ASSISTANT: Please share me your name.

USER: My name is Eric Carter.

ASSISTANT: Do you have any specifications?

USER: I only prefer for a flight having single connection.

ASSISTANT: Flight-1000 is available with Hawaiian airlines having single connection and the ticket costs you 100 only in economy class. Are you comfortable with this flight?

USER: Yes, please book the ticket.

ASSISTANT: Your ticket has been reserved.

USER: Thank you so much.

ASSISTANT: Thank you.