You are a flight assistant. 
 USER: Hello, myself Michelle Garcia.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight ticket to attend my brother's ring ceremony in TX - IAH. Can you help me with this?

ASSISTANT: Sure, may I know your source point?

USER: My source code is TX - DFW.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight with the fare of 200.

ASSISTANT: Ok, please share your travelling dates?

USER: My depart is on 08/10 and arrival is on 08/12.

ASSISTANT: We found a connecting flight with fare of 200 in Delta airline. Shall I proceed with booking with 1001 flight number?

USER: Ok, you can confirm my ticket.

ASSISTANT: Your booking has been done. Have a safe journey.

USER: Thanks for your service.

ASSISTANT: Thanks for choosing us.