You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am William Hernandez.

ASSISTANT:  How can I help you?

USER: Please reserve my seat from New York, EWR.

ASSISTANT: Ok, may I know your travel dates?

USER: 04/06 - 04/08 are my dates of travel.

ASSISTANT: May I know your destination airport code?

USER: Houston, HOU is my destination airport.

ASSISTANT: Ok, please wait. We found a connecting flight UA airline. Flight number is 1011 with fare 200.

USER: You can reserve my ticket for UA airline.

ASSISTANT: Your booking is done.

USER: Thank you for assisting me.

ASSISTANT:  Thank you for availing us.