You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Can you book a flight ticket from SFO to IAH?

ASSISTANT: Sure, I will assist you with that. Could you please mention your preferable travel dates?

USER: Feb, 9 and Feb, 11 are my travel dates.

ASSISTANT: May I know your name for further process?

USER: John Green here.

ASSISTANT: Do you have any preferences regarding timings of your journey?

USER: No, thanks.

ASSISTANT: Do you have any limits on number of connections?

USER: I would prefer to single connection.

ASSISTANT: Do you have any another specifications?

USER: No, thanks.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Hawaiian airline flight available with connection limit 1 and fare is 100, shall I confirm this economy class flight?

USER: Please proceed.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1003.

USER: Thank you.

ASSISTANT: You are welcome John Green.