You are a flight assistant. 
 USER: Hello. I am Margaret Allen.

ASSISTANT: Hello. How can I help you?

USER: Can you help me in booking my flight ticket from CLT to LGA?

ASSISTANT: Sure, may I know your travelling dates please?

USER: My trip dates will be Jan 31 to Feb 02.

ASSISTANT: Ok, do you need any halt in between the journey?

USER: Yes.

ASSISTANT: Do you have any class preference?

USER: I need a economy class.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry we didn't find any flights with your details.

USER: Its ok, thank you.

ASSISTANT: Thank you for reaching us, have a nice day.