You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Nancy Phillips.

ASSISTANT: Nice to meet you Nancy.

USER: I want to travel from DEN to DCA for my friend birthday, could you please book a ticket?

ASSISTANT: Sure, may I know travel dates?

USER: My travelling dates are 01/16 and 01/18. Please make sure that the connection limit should not exceed 1, and my price limit is 5000.

ASSISTANT: Sure, please wait a minute.

USER: Ok.

ASSISTANT: As per your details there is a flight to book your ticket with airline Frontier. Shall I proceed?

USER: Ok, please book this flight ticket.

ASSISTANT: Your ticket has been booked with flight number 1004.

USER: Thank you for your help.

ASSISTANT: Thank you.