You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket to meet my sister at Phoenix, can you help me with booking?

ASSISTANT: Can you provide your trip dates?

USER: My trip dates are Apr 23 and Apr 25.

ASSISTANT: Do you need any connection limit?

USER: I need a lay by in between my journey.

ASSISTANT: Could you share me your preferable timings?

USER: I prefer to depart in the afternoon time.

ASSISTANT: Please provide me your source code.

USER: My source airport code is AUS.

ASSISTANT: Do you need any other requirements?

USER: No.

ASSISTANT: May I know your name for reservation?

USER: I am Laura Nelson.

ASSISTANT: I found a connecting flight in economy class with Delta Airlines and ticket fare of 300. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket is reserved in flight 1028.

USER: Thank you.

ASSISTANT: Thank you for opting us.