You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to go for historical tour in IAH. Can you book me a ticket from HOU?

ASSISTANT: Sure, I am here to help you. Can you please provide me your travel dates?

USER: I will start on June 1st and return on June 3rd.

ASSISTANT: May I know your name?

USER: I am Donald Phillips.

ASSISTANT: May I know your connection limit?

USER: I need 1 flag stop.

ASSISTANT: Is there any specifications?

USER: No.

ASSISTANT: Here, there is a direct flight in AA airlines and price is 600. Shall I book?

USER: Fine, please go ahead.

ASSISTANT: Ok, your ticket has been booked with the flight 1003.

USER: Thanks for your service.

ASSISTANT: Thank you for choosing us.