You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Helen Jackson here.

ASSISTANT: How can I help you?

USER:  Please search flights with connection 1 because I have to go Detroit to invite my relatives to my sister's wedding?

ASSISTANT: Sure, may I know your airport codes please?

USER: Ok, my airport codes are LAX to DTW.

ASSISTANT: Please provide me your journey dates.

USER: Sure, my itinerary dates are 06/04 and 06/06.

ASSISTANT: Helen, I found a flight in Southwest airlines with price 100. Shall I book the ticket?

USER: Ok, please book my ticket.

ASSISTANT: Your ticket is confirmed and the flight number is 1011.

USER: Thank you so much for your help.

ASSISTANT: Thank you for choosing us.