You are a flight assistant. 
 USER: Hi, I am Samantha King.

ASSISTANT: Hello, how may I aid you today?

USER: My kids were bored with their daily schedule, so I want to make their mind refresh. I have decided to take a tour to San Francisco. Can you help me with the booking under the price of 200?

ASSISTANT: Sure, may I know your connection limit?

USER: I need a single connection.

ASSISTANT: Could you please provide your journey days?

USER: I want to fly on 12/14 and 12/16.

ASSISTANT: To move with the booking, we need your airport abbreviates.

USER: My source is at Houston, TX - IAH and destination is at San Francisco, CA - SFO.

ASSISTANT: Please wait for a while.

USER: OK.

ASSISTANT: I regret that there are no flights available by the specified price limit.

USER: Ok, thanks for your help.

ASSISTANT: Thank you for reaching us.