You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best can I assist you?

USER: David Smith here. I want to book a ticket from DFW to EWR. Could you help me?

ASSISTANT: Sure, we will help you in that.

USER: Thank you.

ASSISTANT: When would you like to start your journey?

USER: My journey starts on 04/15.

ASSISTANT: Do you need any halt in between your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Can you please provide your return date?

USER: I want to return on 04/17.

ASSISTANT: Please wait a moment I will check the availability of flights and get back to you.

USER: Ok.

ASSISTANT: We found an airline UA with flight 1017 with fare 100 and single connection. Shall I go with booking?

USER: Yes, please proceed.

ASSISTANT: Your booking has been processed.

USER: Thank you for helping me.

ASSISTANT: Thank you for availing us.