You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can we assist you today?

USER: I am Elizabeth Martinez. I want to book a ticket from OAK to DTW, can you help me?

ASSISTANT: Martinez, can you please tell us your travel dates?

USER: My travel dates are 07/11 and 07/13.

ASSISTANT: Ok, please be on hold for a while.

USER: Ok.

ASSISTANT: There is a flight-1015 available with Delta airlines and the ticket fare is 200 only. Shall I book the ticket?

USER: You can book it.

ASSISTANT: Your ticket is booked successfully.

USER: Thank you for booking.

ASSISTANT: Thank you for contacting us and happy journey.