You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I want to book the flight ticket from SEA to IAH. Can you please help me in booking the ticket with single connection?

ASSISTANT: Sure, May I know your travelling dates?

USER: My travel dates are July 17th and July 19th.

ASSISTANT: Do you have any preferences?

USER: I would like to return in the evening.

ASSISTANT: May I know your name?

USER: Edward Davis.

ASSISTANT: Is there any class preference?

USER: Yes, I prefer to travel in economy class.

ASSISTANT: You have a flight 1020 in AA airline and price 100 with a connection, Shall I proceed in economy class?

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for the help.

ASSISTANT: Thank you.