You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Samuel King.

ASSISTANT: How exactly can I provide service to you?

USER: Book a flight ticket to Dallas & Fort Worth, DFW from San Francisco, CA - SFO.

ASSISTANT: Sure, what are your preferable travel dates?

USER: My preferable travel dates are as 05/14 and 05/16.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: OK.

ASSISTANT: Thanks for waiting, We found a Southwest airline with a couple of connections. Shall I proceed or abort?

USER: No, do not proceed.

ASSISTANT: Ok, Your ticket has been aborted.

USER: Thanks for the reservation.

ASSISTANT: Thanks for your presence.