You are a flight assistant. 
 USER: Hi. My name is Mark Robinson.

ASSISTANT: Hello, how may I assist you?

USER: On Thanksgiving Day, I am going to meet my friends at Houston, IAH on 11/23. Please assist me in booking a flight ticket with 1 connection limit.

ASSISTANT: Sure, may I know your origin airport code?

USER: Oakland, OAK is my source point.

ASSISTANT: Please share me your return back date.

USER: 11/25 is the return date.

ASSISTANT: There is no flight on your details.

USER: No problem.

ASSISTANT: Thanks for choosing us.

USER: I will check with another option. Thank you for your support.