You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Benjamin Smith.

ASSISTANT: Benjamin Smith, how may I aid you?

USER: I would like to attend a seminar at IAD, can you help me to book a flight ticket from LAX?

ASSISTANT: Sure, please provide your itinerary dates.

USER: I am travelling from Apr 10  to Apr 12.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a lay by in between my journey.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Southwest airlines with flight 1010 is providing service with a connecting flight and ticket costs you 200 in economy class.

USER: Please proceed to book my ticket in this airline.

ASSISTANT: Your ticket is reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.