You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Cynthia Clark.

ASSISTANT: How can I help you at this moment?

USER: I am planning to celebrate my birthday in Denver, so please book a flight ticket from JFK to DEN.

ASSISTANT: Sure, I will help you with that. Can you please mention your travel dates?

USER: I want to fly on Oct 23, return on Oct 25.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: UA airline is ready to serve you with 1 connection with a minimum fare of 100 is available for you. Shall I proceed with this?

USER: You can proceed to booking.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1027.

USER: Thank you for your help.

ASSISTANT: You are welcome.