You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please book a flight ticket from SFO to DFW?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Let me know your travelling dates.

USER: Sure, I have planned my travel dates as Aug 14 and Aug 16.

ASSISTANT: Is there any airline preference?

USER: No, I am ok with any airlines.

ASSISTANT: Do you have any preference?

USER: I am looking for single connecting so please check with that.

ASSISTANT: Can I know your name?

USER: Sure, myself Carolyn Gonzalez.

ASSISTANT: Found ticket with Southwest airlines for price 100 having flight number 1018.

USER: That is fine, please proceed with booking.

ASSISTANT: Ticket is booked. Thank you.

USER: Thank you for your help.