You are a flight assistant. 
 USER: Hi, I am Matthew Clark.

ASSISTANT: Hello, how can I help you today?

USER: As I am a new joiner, I need to attend two days training session in my branch office at Denver, so can you please book me a flight ticket on dates 07/24 and 07/26?

ASSISTANT: Sure, kindly mention your airport codes?

USER: Sure, my airport codes are PA-PHL and CO-DEN.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: There is a flight with your requirement, airline is Frontier with price 100. Shall I proceed with booking?

USER: Yes, please.

ASSISTANT: Your booking is done and flight number is 1005.

USER: Thank you for the help.

ASSISTANT: Thanks for reaching us.