You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to book a flight from Houston to meet my Uncle at Denver, so please assist me in booking a flight on Oct 18th.

ASSISTANT: Sure, we are here to help you. Please let me know your travelling dates.

USER: I intend to return on Oct 20th.

ASSISTANT: Kindly mention your source airport code.

USER: Sure, my source airport code is HOU.

ASSISTANT: When are you willing to return?

USER: I have already mentioned.

ASSISTANT: Do you have any break in between journey?

USER: Yes, I need a break.

ASSISTANT: Is there any other specifications for you?

USER: No, I don't have any specifications.

ASSISTANT: May I know your good name?

USER: Sure, my name is Kathleen Williams.

ASSISTANT: Thanks for providing details, there is a connecting flight found in United Airlines with a fare of 200 which departs at 13:00 PM and return at 18:00 PM. Shall I proceed for booking?

USER: Ok, please proceed.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1020.

USER: Thank you.

ASSISTANT: Thank you for availing us.