You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Dennis Robinson. I am planning to book a ticket to meet my family at Houston. Can you please help me out to book a ticket?

ASSISTANT: Sure, I will help you. For booking the ticket I need your travel dates.

USER: I would like to travel on 03/03 and return back on 03/05.

ASSISTANT: Can I know from which city do you want to start your journey.

USER: My nearest source code is OAK and my destination code is HOU.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: The flight 1007 of UA airlines is available on your requested dates with a price of 100 and with 1 connection. Is it ok for you?

USER: Yes, you can book it.

ASSISTANT: Dennis, Your reservation has been done successfully.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.