You are a flight assistant. 
 USER: Hello, I am Alexander Nelson.

ASSISTANT: Hello, how can I help you today?

USER: I want to head to Houston, TX - IAH from Dallas & Fort Worth to meet my family doctor. Can you book ma ticket from 08/19 to 08/21?

ASSISTANT: Sure, Can you provide me your airport code?

USER: Yes, it is TX - DFW.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thanks for the time, we found a flight with your requirement.

USER: Ok. Thanks for the response.

ASSISTANT: Your airline is UA flight number 1014 with price 100 and single connection.

USER: Please proceed with this airline.

ASSISTANT: Your ticket is confirmed, thanks for choosing us. Have a good day.

USER: Thank you.