You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Jack Clark.

ASSISTANT: How may I help you?

USER: I wish to go to for comedy city tour to Charlotte, CLT. Can you please book a ticket for me?

ASSISTANT: Sure, do you have any price limit?

USER: Price limit is 500.

ASSISTANT: Help me with the source code?

USER: Origin code is Oakland, OAK.

ASSISTANT: When would you like to travel?

USER: Travelling dates are 06/06 to 06/08.

ASSISTANT: Thank you for your details, we found a flight in an airline Frontier of number 1004, price of 100.

USER: You can proceed.

ASSISTANT: Shall I proceed to book? Ok. Your flight ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.