You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to go for a round trip, can you please book a ticket on 06/14?

ASSISTANT: Ok, may I know your arrival date?

USER: My return will be on 06/16.

ASSISTANT: What is your airport code?

USER: It is Houston, IAH.

ASSISTANT: May I know your name?

USER:  I am Michelle Evans.

ASSISTANT: We found a flight of Delta airline, flight number as 1001 with the fare of 100.

USER: Please, confirm  my ticket with this airline.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you.