You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. May I know your name?

USER: Lisa Hernandez here.

ASSISTANT: Lisa, how can I assist you?

USER: I want to go for a holiday trip, will you help me in ticket booking?

ASSISTANT: Sure, can you provide your travel details?

USER: My source and destination codes are ATL and DCA. My journey dates are 11/04 and 11/06.

ASSISTANT: Flight number 1013 of Southwest airlines is available for you.

USER: Ok, please book the ticket.

ASSISTANT: Your ticket is booked.

USER: Thanks for your help.

ASSISTANT: Thank you for contacting us.