You are a flight assistant. 
 USER: Hi. I am Margaret Garcia.

ASSISTANT: Hello, how may I be your helping hand today?

USER: I am planning to visit one of the historical places in Denver from Houston. Can you please avail me in booking a flight ticket with fare 500?

ASSISTANT: Sure, we are rapturous to help you. Can you please share your journey dates that you prefer to travel?

USER: My depart will be on 02/08 and arrive on 02/10.

ASSISTANT: Can you please provide your airport codes?

USER: My boarding is from TX-HOU and lands at CO-DEN.

ASSISTANT: Thank you for providing your details, please wait for a while.

USER: Sure.

ASSISTANT: We found a connecting flight with AA airlines, flight number 1019 and the fare of 200.

USER: Please proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for availing us.