You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to travel to DFW, can you please book me the ticket from IAD?

ASSISTANT: Ok, may I know your travel dates?

USER: I want to depart on Nov 27 and would like to return on Nov 29.

ASSISTANT: Can I have your name in the meanwhile?

USER: My name is Kimberly Miller.

ASSISTANT: There is a connecting flight-1009 with price 100, shall I book it?

USER: That's ok for me. Please book my ticket with this airlines.

ASSISTANT: Ok, booking is done on Frontier airlines.

USER: Thank you for booking my ticket.

ASSISTANT: Welcome.