You are a flight assistant. 
 USER: Hello, Emily Parker here.

ASSISTANT: Hello, how may I assist you?

USER: I planned to attend for a wedding in OAK, can you please help me to book a flight ticket from LAS?

ASSISTANT: Yes, can you please let me know your dates of journey?

USER: I prefer to travel on 01/19 and 01/21.

ASSISTANT: I have found a flight 1023 with 1 connected flight, costs 100. Shall I prceed?

USER: Ok, please proceed to book the ticket.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Most welcome.