You are a flight assistant. 
 USER: Hello, I am Virginia Scott.

ASSISTANT: Hello, how may I aid you?

USER: I want to attend a business meeting in Detroit, MI - DTW from Houston, TX - IAH. Can you book me a ticket with price range of 200?

ASSISTANT: Sure, Could you please put forward your travelling dates?

USER: I fly on 01/26 and return on 01/28. I need a single connection.

ASSISTANT: Ok, please give me a minute, I will examine the availability of flights and get back to you.

USER: Sure.

ASSISTANT: Thank you for your patience, There is a Southwest plane available with flight number 1003. Shall I proceed with price 100?

USER: You can proceed.

ASSISTANT: Sure, your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching our service.