You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your sweet  name?

USER: My name is Jessica Harris.

ASSISTANT: Harris, what can I do for you?

USER: I am a cop and I want to visit Denver for investigation, can you book a ticket?

ASSISTANT: Sure, may I know your travel details?

USER: I want to travel from JFK to DEN.

ASSISTANT: Please provide your dates?

USER: My journey dates are 03/13 and 03/15.

ASSISTANT: Based on your request, there is a flight with airline UA. Shall I proceed?

USER: Ok, book it.

ASSISTANT: Your ticket has been booked with flight number 1013. Have a safe journey.

USER: Thank you for helping.

ASSISTANT: It's my pleasure.