You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How may I help you/.

USER: I am Nicole Lopez.

ASSISTANT: Ok.

USER: I would like to book a ticket from DFW to DCA to participate in science fest. Can you hep me?

ASSISTANT: Please provide your journey dates?

USER: My departure is on 01/28 and return is on 01/30.

ASSISTANT: Please mention connections limit?

USER: I need a flag stop.

ASSISTANT: Ticket is available with flight number 1004, airline Hawaiian and price is 100.

USER: It's perfect. Please book it.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thanks.