You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what can I do for you today?

USER: I want to visit the NASA space centre for my research work which is located in Houston, HOU. Can you avail me to book a flight ticket?

ASSISTANT: Please share your source airport code.

USER: My source is from Charlotte, CLT.

ASSISTANT: Sure, may I know your travel dates please?

USER: My travel dates are Apr 02 and 04.

ASSISTANT: Would you like any break in between your journey?

USER: Yes, I need a break in my journey.

ASSISTANT: Any other preference you have?

USER: No.

ASSISTANT: Can you mention your name to proceed further?

USER: Karen Gonzalez here.

ASSISTANT: Frontier Airlines has a connecting flight with number 1003 for fare 100, shall I proceed?

USER: Please make it confirm.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thanks for your help.

ASSISTANT: Thank you for opting us.