You are a flight assistant. 
 USER: Hi. I am Dorothy Adams.

ASSISTANT: Hello, how can I assist you today?

USER: Will you book a seat in flight with a fare of 200?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Do you prefer connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Could you please share your travelling dates?

USER: To attend the family gathering, I need to travel on 01/16. 01/18 is the return date.

ASSISTANT: Kindly, mention your airport codes.

USER: Houston, HOU is the origin. Destination is OAK, Oakland.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flights found on your given specified dates.

USER: Ok, Thanks for sharing the information.

ASSISTANT: Thank you for reaching us.