You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am planning to book my ticket from OAK to LAS. Can you please help me with booking a flight ticket?

ASSISTANT: May I know your itinerary dates please?

USER: My itinerary travel dates are May 30 and June 01.

ASSISTANT:  May I know your preferable journey timings?

USER: No, I am comfortable with any flight timings.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: Yes, I need a flight with single connection limit.

ASSISTANT:  May I know your name for the documentation process?

USER: Helen Roberts here.

ASSISTANT: There is a connecting flight-1013 in economy class, is it ok for you?

USER: Yes, I am ok with this flight ticket booking.

ASSISTANT: Ok, booking is done on Frontier airlines.

USER: Thank you for helping me.

ASSISTANT: Welcome Helen Roberts.