You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Virginia Parker here. I'm planning to attend a wedding, can you book a ticket from LAX to DFW?

ASSISTANT: Sure, when are you planning to travel?

USER: My planned departure and return travel dates are 1st and 3rd of March.

ASSISTANT: Please let me know your class preference.

USER: I'm ok with any class.

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

USER: I want to return in the evening time.

ASSISTANT: How many connections do you need?

USER: My maximum connection has to be 1.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there are no flights going on your way at this moment.

USER: Oh! That's ok, thank you for giving the information.

ASSISTANT: Thank you for approaching us.