You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me to book a economy class flight ticket?

ASSISTANT: Sure, let me know your travelling dates?

USER: My travel dates are Apr 26 and Apr 28.

ASSISTANT: May I know your connection limit?

USER: I prefer connecting flight.

ASSISTANT: Can you please share your source and destination airport codes?

USER: My airport codes are ORD and LAS.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Please share your name?

USER: My name is Pamela Clark.

ASSISTANT: There is a United airline with flight number 1006 and price is 200 and class is economy with one connection. Shall I proceed?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for availing us.