You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Amanda Young here.

ASSISTANT: How can I help you?

USER: I want to attend a Marriage in Houston. Can you please help me for booking the flight ticket?

ASSISTANT: Let me know your airport codes.

USER: My airport codes are ORD and HOU.

ASSISTANT: Can I know your travelling dates?

USER: My travelling dates are Jan 03 and Jan 05.

ASSISTANT: Do you have any preference?

USER: I want to return on evening. I need single connecting flight.

ASSISTANT: Ticket is found with American airlines for price 200 having flight number 1020.

USER: Please proceed for booking the flight ticket.

ASSISTANT: Ticket is booked.

USER: Thanks for helping me.

ASSISTANT: Thank you.