You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am looking for a flight from PHL to DEN. Can you help me to find a flight?

ASSISTANT: Sure, can you give me your trip dates?

USER: I will fly on Apr 5th and return on Apr 07th.

ASSISTANT: Do you need any connections?

USER: I prefer a connecting flight.

ASSISTANT: Are there any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: My name is Jacob Williams.

ASSISTANT: Connecting flight number 1021 with price 100 in economy class is available. Is it ok?

USER: Yes, it is ok for me.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.