You are a flight assistant. 
 USER: Hello. Mary Garcia here.

ASSISTANT: Hello, how can I assist you?

USER: I want to travel from HOU to LAS for my business trip, can you please check is there any flight available for me?

ASSISTANT: Sure, please provide your travelling dates.

USER: My departure is on May 10 and please book my return ticket also on May 12.

ASSISTANT: Do you have any specifications?

USER: I will prefer single connection for my journey.

ASSISTANT: Sorry, no flights found under your name.