You are a flight assistant. 
 USER: Hi. I am Carol Robinson.

ASSISTANT: Hello,. How can I amend you today?

USER: I want to book a flight ticket to attend an event from TX-HOU to CA-LAX. Can you help me?

ASSISTANT: Sure, we are here to aid you. What is the budget for your trip?

USER: I can afford up to 200.

ASSISTANT: When did you schedule your trip?

USER: 04/25 and 04/27 are my travelling dates. Make sure that its a  direct flight.

ASSISTANT: Thanks for your deatils. We found a plane with the fare of 600. Shall I proceed?

USER: Yes you can.

ASSISTANT: Your ticket has been reserved with the fare of 600 with 1012 of Frontier airline.

USER: Thank you.

ASSISTANT: Thank you for availing us.