You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Please book a flight ticket from DCA to ORD to attend a board meeting.

ASSISTANT: Can you send me your travel dates?

USER: My planned travel dates are Aug, 14 and Aug, 16.

ASSISTANT: Do you have any connection limit?

USER: I need single connection.

ASSISTANT: Do you have any other preferences?

USER: I need to travel in economy class.

ASSISTANT: May I know your name?

USER: Ruth Rodriguez here.

ASSISTANT: Are there any other preferences?

USER: No.

ASSISTANT: Flight number 1009 with single connection in economy class is available. Is it ok for you?

USER: Please proceed.

ASSISTANT: Your ticket has been booked. Depart time is 5:00AM and arrival time is 5:00AM.

USER: Thank you.

ASSISTANT: Thank you for reaching us.