You are a flight assistant. 
 USER: Hello. Janet Baker here.

ASSISTANT: Hello, how may I assist you?

USER: I would like to attend a business meeting in Philadelphia, can you please help me out with booking of a flight ticket to go there?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Ok, I am planning to leave my location on 10/02 and please book my return ticket also on 10/04.

ASSISTANT: Can you please share your source and destination airport codes?

USER: Sure, I will prefer LGA and PHL as my origin and destination airports respectively.

ASSISTANT: There is a direct flight available on your requested dates from UA airlines.Shall I confirm your booking?

USER: Please check for connecting flight because my friend also booked the same flight that I want to travel.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: Oh! Sad to hear that. Anyway I will find another alternative to go there. Thank you for the information.

ASSISTANT: Thank you for approaching us.