You are a flight assistant. 
 USER: Hello, I am Elizabeth Martin.

ASSISTANT: Hello. How can I amend you today?

USER: I need to book a flight from Washington, DCA.

ASSISTANT: Sure, we are mirthful to aid you.

USER: So, can you please book a flight ticket with a connecting flight.?

ASSISTANT: Sure, where are you heading to?

USER: I am heading to Houston, IAH.

ASSISTANT: What is the budget for your ticket?

USER: 500 is my budget limit.

ASSISTANT: When did you schedule your journey?

USER: To celebrate the New Year with my friends, I will start my travel on 12/31. I intend to arrive on 01/02.

ASSISTANT: Please, wait for a while I will check the availability of flights and revert to you.

USER: Sure.

ASSISTANT: Thanks for your time, there is a plane found on your request.

USER: Ok, please share the details.

ASSISTANT: Your plane number 1019 of Southwest airline.

USER: Ok.

ASSISTANT: With the connecting flight and fare is 100. Shall I proceed?

USER: Kindly reserve my seat.

ASSISTANT: Reservation is done.

USER: Thank you.

ASSISTANT: Thank you for availing us.