You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Christine Gonzalez here.

ASSISTANT: Christine, how can I assist you?

USER:  I have to attend my brother's wedding, could you please help me to book my flight ticket from DTW to LAX?

ASSISTANT: Sure, can you please tell me your travel dates?

USER: Ok, my itinerary dates are 05/01 and 05/03.

ASSISTANT: Flight-1002 is available with UA airlines and the ticket fare is 100 only. Is that ok for you?

USER: That's ok, please book my ticket.

ASSISTANT: Your ticket is booked and the flight number is 1002.

USER: Thank you for your service.

ASSISTANT: You are most welcome.