You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you at present?

USER: I am planning to book a ticket to meet my friend at IAD. Can you please help  me out from HOU?

ASSISTANT: Sure, May I know your planned dates?

USER: I am planning to travel on Feb 17 and return back on Feb 19.

ASSISTANT: Ok, Is there any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Please share your good name.

USER: My name is David Thomas.

ASSISTANT: We found a flight in 1013 American Airline with a connected flight and the cost is 400. Can I proceed for booking in business class?

USER: That's fine, please proceed the booking.

ASSISTANT: Sure, your ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you for availing us.