You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Michelle Carter want to book a ticket to San Francisco, CA-SFO from Charlotte, can you please book me a ticket?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are from 12/10 to 12/12.

ASSISTANT: Kindly provide your source code.

USER: My source code is Charlotte, NC-CLT.

ASSISTANT: Please stand by.

USER: Ok.

ASSISTANT: There is a flight available with number 1009 in Spirit airline and the ticket price is 100.

USER: Please proceed.

ASSISTANT: Your ticket is reserved.

USER: Thank you for your support.

ASSISTANT: Thank you.