You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am planning to visit Houston Zoo with my children at HOU, can you help me with booking?

ASSISTANT: Sure, may I know the planned travel dates?

USER: My travel dates are July 16 and July 18.

ASSISTANT: Please provide me the specifications.

USER: I need a break in between my journey.

ASSISTANT: Please provide me the source airport code.

USER: My source airport code is SEA.

ASSISTANT: Sorry, there are no flights are available for your desired intent.

USER: Ok, no issues. Thank you.

ASSISTANT: Please provide me the name for documentation purpose.

USER: I am Margaret Miller.

ASSISTANT: Thank you for reaching us.