You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you today?

USER: I am Sandra Brown. Can you please help me with booking a flight ticket to Los Angeles within price 200?

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: Can you please provide your take off and landing airport codes?

USER: I want to take off from ORD and land at LAX.

ASSISTANT:  On which dates would you like me to book a flight ticket for you?

USER: 06/19 and 06/21 are my preferable dates.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Ok, take your time.

ASSISTANT: Thanks for your precious time. We found Southwest airline fare of 100. Shall I proceed for booking with single stopover flight?

USER: Yes, you can proceed.

ASSISTANT: Your ticket has been confirmed with airline number 1003.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.