You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Could you please book a flight ticket from HOU to SEA?

ASSISTANT: Ok, please can you I know dates of journey?

USER: My journey dates are Sept 20 and Sept 22.

ASSISTANT: Ok, please provide me your name to proceed.

USER: My name is Brenda Wilson.

ASSISTANT: Ok, please can I know the specifications?

USER: I need a single connecting flight.

ASSISTANT: Sure, is there any other specifications?

USER: No.

ASSISTANT: Sorry, there are no flights available at your locations which you planned the journey to book a ticket.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for choosing our agency.