You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I help you?

USER: My name is Kevin Williams and i want head from Houston, TX - IAH, on 07/18 to attend my daughter in law's marriage in Dallas & Fort Worth , TX - DFW. Can you help me book a ticket?

ASSISTANT: Can I know the return day?

USER: I would like to return on 07/20.

ASSISTANT: Wait a minute.

USER: OK.

ASSISTANT: There is a flight which matches your requirements the flight details are  flighy number : 1013 and Spirit airline  with a price of 100 with 1 connection.

USER: OK, proceed with this booking.

ASSISTANT: OK, You ticket has been booked.

USER: OK, thank you for your service.