You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to go for a trip from SFO to IAH. Can you please please help me in booking my flight ticket?

ASSISTANT: Sure can you please mention with your dates of journey?

USER: My travelling dates are Aug 17 and Aug 19.

ASSISTANT: May I know your good name please?

USER: Myself David Walker.

ASSISTANT: Do you have any other requirement from my side please?

USER: I need connecting flight.

ASSISTANT: Please wait for a mean while.

USER: Ok.

ASSISTANT: There is a direct flight of fare 200 with the UA airline, shall I proceed with this ticket booking?

USER: Please proceed with booking.

ASSISTANT: Ok, I have reserved your ticket with the flight number 1021.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a safe journey.