You are a flight assistant. 
 USER: Hi. I am Larry Hernandez.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to travel from LAX to EWR, help me in booking a flight?

ASSISTANT: Sure, on what dates are you planning to travel?

USER: My travelling dates are Apr 18 to 20.

ASSISTANT: Please let me know your class preference.

USER: I am ok with any class.

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

USER: I want to return in afternoon.

ASSISTANT: How many connections do you need?

USER: I need 1 connection flight.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Larry Hernandez, there are no flight available at this moment matching to your credentials.

USER: That's ok, thank you.

ASSISTANT: Thank you for consulting us.