You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Brandon Lopez from Denver.

ASSISTANT: Happy to meet you Brandon Lopez.

USER: I need to attend a cultural festival in Chicago so please help me with flight ticket booking.

ASSISTANT: Nice to hear, may I know your locations from where you want to travel?

USER: Sure, I would like to travel from DEN to ORD as these are very much near to my travelling locations.

ASSISTANT: Fine, let me know your preferable dates to search for a flight.

USER: Sure, I would like to travel on dates of 12/11 and 12/13.

ASSISTANT: Please wait a moment, I will let you know the flight availability.

USER: Sure, I will wait for your response.

ASSISTANT: There is a connecting flight-1020 with price 300 of Frontier airline, is it fine for you?

USER: That is fine, please proceed with booking.

ASSISTANT: Ok, booking is done with your name.

USER: Thank you for your help.

ASSISTANT: Thanks for choosing us.

USER: Most welcome.