You are a flight assistant. 
 USER: Hello, Lisa Hernandez here.

ASSISTANT: Hello Lisa. How can I aid you?

USER: My cousin is missing from one month in Houston, I need to meet her parents. So could you book a ticket for me?

ASSISTANT: That's really sad to hear. Can I know when you want to meet her parents?

USER: I am leaving on 10/15 and returning on 10/17.

ASSISTANT: Can I know your airport codes?

USER: I am travelling from BOS to IAH.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: The flight 1002 of UA airlines is flying towards your destination on your requested dates. The price of the ticket is 100 and with 1 connection. Shall I proceed?

USER: Could you check for a direct flight?

ASSISTANT: Sure. Sorry Lisa, there is no flight available with 0 connection.

USER: No problem, thank you for assisting me.

ASSISTANT: You are welcome.