You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I want to book a ticket from DCA to LAS to attend seminar, can you help me in booking?

ASSISTANT: Sure, may I know your connection limit please?

USER: I need a flight with connection limit 1 which depart in evening time.

ASSISTANT: Tell me your travel dates please?

USER: I am departing on Oct 24 and return on Oct 26.

ASSISTANT: May I know your name please?

USER: My name is Emma Baker.

ASSISTANT: Do you have any other preferences?

USER: I do not have any other preferences.

ASSISTANT: Please wait.

USER: Sure, take your time.

ASSISTANT: Thanks for your patience. I have found a normal-cost airline that is Frontier airlines which flies with one connection.

USER: Please proceed for booking.

ASSISTANT: Yes, I have confirmed your flight ticket in flight number 1010.

USER: Thank you for your help.

ASSISTANT: Thank you.