You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How can I help you?

USER: I am Rebecca Thompson.

ASSISTANT: Ok.

USER: As I will be travelling to Phoenix, PHX, please book a ticket from Denver, DEN.

ASSISTANT: Ok. Share your travel dates.

USER: My departure is on 02/26 and return will be by 02/28.

ASSISTANT: Ok. You have Delta airline. Flight number 1003. May I proceed to book with connecting flight?

USER: Please let me know ticket price?

ASSISTANT: Your ticket is 100.

USER: You can proceed to book connecting flight.

ASSISTANT: Thanks for availing us, Your ticket has been booked.

USER: Thanks.