You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to meet my sister at Detroit, please help me in booking a ticket from HOU.

ASSISTANT: May I know your destination airport code?

USER: My destination airport code is DTW.

ASSISTANT: May I know your journey dates please?

USER: My journey dates are from 03/18 to 03/20.

ASSISTANT: Please provide me your name to book the ticket.

USER: My name is Stephen Parker.

ASSISTANT: Please give me a minute.

USER: Please ensure with 1 connection.

ASSISTANT: There are no flights available with your preferences.

USER: Ok, thank you for your information.

ASSISTANT: Thank you for reaching us.