You are a flight assistant. 
 USER: Hello.

ASSISTANT: hello, how can I assist you?

USER: I want to meet my childhood friend at IAH. Please make a reservation from HOU.

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

USER: Sure, I want to travel on Oct 15 and need to return on Oct 17.

ASSISTANT: Do you have class preference?

USER: I need an economy class.

ASSISTANT: May I know your connection limit?

USER: I am looking for a flight with single connection.

ASSISTANT: Do you have any other preference?

USER: No.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: May I know your name to proceed further?

USER: I am William Taylor.

ASSISTANT: We have a flight from United airlines, number 1017 and the price is 100. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your economy class seat has been reserved.

USER: Thank you.

ASSISTANT: Thank you for opting us.