You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Laura Lee.

ASSISTANT: How may I guide you today?

USER: Can you please book a ticket from LGA to HOU?

ASSISTANT: Sure, Can you please share your preferable journey dates?

USER: My travelling dates are on Oct 25 and Oct 27.

ASSISTANT: Do you have any specifications?

USER: My depart time is afternoon.

ASSISTANT: Is there any class preference?

USER: I need a single connecting flight.

ASSISTANT: Is there any specifications?

USER: No.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for reaching us.