You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Jessica Adams here.

ASSISTANT: Adams, how may I help you?

USER: I have to attend an event, could you please help me to book my flight ticket from DEN to PHL?

ASSISTANT: Sure, please provide your itinerary dates.

USER: Sure, I will depart on 01/16 and return on 01/18.

ASSISTANT: UA airlines with flight 1012 is available.

USER: Sounds good, you can proceed for booking the ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you very much for your help.

ASSISTANT: Thank you for reaching us.