You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be there for you?

USER: I am Kevin Garcia. I want to book a flight ticket from LGA to IAH. Could you help me in booking?

ASSISTANT: Sure, on what dates are you planning to make your trip?

USER: My travelling dates are from Jan 29-31.

ASSISTANT: Do you need an economy class or business class?

USER: No.

ASSISTANT: At what time would you prefer to depart and return?

USER: My return time should be in the evening.

ASSISTANT: How many connections do you need?

USER: I need direct flight.

ASSISTANT: Ok, please give me a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, we could not find any reservation by the name you provided.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.