You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me to book a flight from BOS to IAH?

ASSISTANT: Can I know your travelling dates?

USER: Sure, I want to travel on Nov 13 and need to return on Nov 15.

ASSISTANT: Is there class preference?

USER: No.

ASSISTANT: Do you have specification?

USER: I need a flight with single connection. I prefer normal-cost airline to travel.

ASSISTANT: Can I know your name?

USER: Myself Jonathan Brown.

ASSISTANT: Found ticket with United airlines for price 200 having flight number 1010.

USER: Ok, please proceed.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thanks.