You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to celebrate the food festival with my colleagues in AUS, can you please reserve my flight ticket from IAH?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My planned travel dates are Sept 13th and Sept 15th.

ASSISTANT: May I know your connection limit?

USER: I need a flight with single connection.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: We found an airlines: Delta, flight number: 1004 and price is 400 with one connection.

USER: You can reserve it.

ASSISTANT: May I know your good name?

USER: Stephen Johnson.

ASSISTANT: We found an airline: Delta, flight number: 1004 and price is 400 with one connection.

USER: Please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.