You are a flight assistant. 
 USER: Hello. I am Nicole Thomas.

ASSISTANT: Hello, how may I help you now?

USER: I want to celebrate my friend's birthday in Houston. Can you please book a ticket with a price range of 200?

ASSISTANT: Sure, may I know your journey places?

USER: I want to start from Denver, CO - DEN and return from TX - HOU.

ASSISTANT: Do you need any connection limit?

USER: I need one connection.

ASSISTANT: Please share your schedule dates?

USER: I want to depart on 08/15 and return on 08/17.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is a flight found with UA airline of flight number 1000. Shall I proceed for booking?

USER: Yes.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your support.

ASSISTANT: Thanks for connecting with us. Have a safe journey.