You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your assistance today?

USER: I am Dennis Johnson. I would like to book a ticket to Denver, can you please book a ticket for me?

ASSISTANT: Sure, I will help you. Please mention your travelling dates?

USER: My travelling dates are 06/29 and 07/01.

ASSISTANT: Please share me your airport codes?

USER: I am flying from IAH to DEN.

ASSISTANT: Do you have any restrictions?

USER: I should have price limit with 200. And connections should be zero.

ASSISTANT: There is a connecting flight with price of 100 and flight number is 1024. Shall I proceed?

USER: Sure, you can proceed with this flight.

ASSISTANT: Your booking has been confirmed with Delta airline.

USER: Thank you for your valuable services.

ASSISTANT: Thanks for your approach.