You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Robert Moore. I have a plan to meet friend in Los Angeles, can you help me for booking?

ASSISTANT: Sure, can you please share your planning dates of journey?

USER: My travelling dates are from 10/18 till 10/20.

ASSISTANT: Ok, may I know your airport codes?

USER: My travelling airport codes are from DEN to LAX.

ASSISTANT: Flight 1019 in Spirit airlines is available  for you with 1 connection. Shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking is confirmed.

USER: Thank you for booking.

ASSISTANT: Welcome, have a nice day.