You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I aid you?

USER: Can you please reserve me a flight ticket from HOU to DFW to attend a film festival?

ASSISTANT: Sure, May I know your travelling dates?

USER: My planned journey dates are July 12 and July 14.

ASSISTANT: Do you have any connection limit?

USER: I need a flight with single connection.

ASSISTANT: Is there any class preference?

USER: I prefer an economy class for journey.

ASSISTANT: May I know your name?

USER: I am Ryan Walker.

ASSISTANT: You have a connecting flight 1009 in UA airline and price 100, Shall I proceed?

USER: Please, proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you.