You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: This is Nancy Perez.

ASSISTANT: How can I assist you?

USER: I want to book a flight ticket from Denver, CO - DEN to Washington, DC - DCA. Can you help me in that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: I want to start my journey on 03/30 and return on 04/01.

ASSISTANT: Can I know how much you can pay for this ticket?

USER: I can pay up to 1000.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Thank you for waiting, we found a flight with number 1007 and airline Frontier at a price of 200 with 1 connection. Shall I proceed?

USER: You can proceed.

ASSISTANT: Sure, your booking is done.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us, have a nice day.