You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am planning to visit Lake Merritt at Oakland, could you please help me with booking a flight ticket from IAH to OAK?

ASSISTANT: Sure, can you please share me your travelling dates?

USER: I would like to depart on Mar 23rd and return on Mar 25th.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Is there any other specifications?

USER: Make sure that my return time must be evening.

ASSISTANT: May I know your name?

USER: I am Jerry Scott.

ASSISTANT: Sorry, there were no flights with your given details.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching us.