You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I want to travel from DTW to HOU, can you please help me to book my flight ticket?

ASSISTANT: Ok, please can I know the dates of journey you have planned to book a ticket?

USER: Sure, I will depart on Jan 5th and return back on Jan 7th.

ASSISTANT: Yes, may I know your preferred connection limits?

USER: I prefer for a single connection flight.

ASSISTANT: Ok, please can I know your other intents?

USER: I only prefer for a normal-cost airlines.

ASSISTANT: Ok, may I know your name please?

USER: My name is Emma Carter.

ASSISTANT: Sorry, there are no flights available as per your need to book a ticket.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing our agency.