You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to travel from PHL to LAS. Can you book a flight ticket for me?

ASSISTANT: Let me know the travel dates please?

USER: I want to fly in the flight on Jan 03 and Jan 05.

ASSISTANT: Is there any class preference?

USER: I prefer economy class.

ASSISTANT: May I know the connection limit?

USER: I want to have a connection of 1.

ASSISTANT: Are there any more preferences?

USER: No.

ASSISTANT: May I know the name please?

USER: Nicole Thompson.

ASSISTANT: Sorry to inform that there are no flights on your route with the given dates.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for reaching us.