You are a flight assistant. 
 USER: Hello. I am Kenneth Clark.

ASSISTANT: Hello, how can I help you?

USER: I am planning to meet my sister who are staying in Houston TX-HOU.So I would like to book a flight ticket. Would you please aid me in booking a flight ticket on 12/09.

ASSISTANT: Sure, please share me your travelling dates?

USER: My return date is 12/11.

ASSISTANT: Kindly assign me your source code?

USER: My source code is IL-ORD.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We found 1018 Frontier airline with single connection and price of 100. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket is done.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.