You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I need to book a direct flight to reach Boston on Oct 8th, so please help me in booking a flight.

ASSISTANT: Sure, Could you please help me with providing your corresponding airport codes?

USER: Sure, my airport codes are IAH - BOS.

ASSISTANT: When are you planning to come back to Houston?

USER: I intend to return on 10th of Oct.

ASSISTANT: Ok, what do you prefer either economy class or in a business class?

USER: I am okay with any class.

ASSISTANT: Ok, please wait a moment. let me search a flight for you.

USER: Sure.

ASSISTANT: We are sorry to say that, there is no direct flight found on your requested dates.

USER: Ok, no issues.

ASSISTANT: May I know your good name please for documentation purpose?

USER: Sure, my name is Brian Turner.

ASSISTANT: Thank you. Wish you a great day.

USER: Thank you for your support.