You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Jessica Jones. I am planning to go for NASA space center at Houston, HOU. Can you please book a ticket for me?

ASSISTANT: Sure, may I know your Source code?

USER: Origin code is Oakland, OAK.

ASSISTANT: Can I know your travelling dates?

USER: Travelling dates are 07/02 to 07/04.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: We found a flight number 1005 and Spirit as airline.

USER: You can proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us.