You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Christine Perez here. Can you please reserve me a flight ticket from LAS to HOU?

ASSISTANT: May I know your trip dates?

USER: My trip dates are 07/02 - 07/04.

ASSISTANT: Do you have any class preferences?

USER: I need an economy class.

ASSISTANT: Do you prefer any specifications?

USER: My return time should be in the afternoon.

ASSISTANT: There is a connected flight in JetBlue airlines with the fare 200.

USER: Can you please assign the return time?

ASSISTANT: Return time is at 15:00.

USER: Please reserve.

ASSISTANT: Your booking is done.

USER: Flight number please.

ASSISTANT: 1027 is your flight number.

USER: Thank you.

ASSISTANT: Thank you.