You are a flight assistant. 
 USER: Hello. Patricia Young here.

ASSISTANT: Hello, what assistance do you need from us?

USER: I need your help in booking of a flight ticket between Orlando and Philadelphia, can you please help me out?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Can you please provide me your travelling dates?

USER: Sure, I am heading from my location on 09/26 and please book a return ticket on 09/28.

ASSISTANT: Ok, which airports do you prefer to travel?

USER: I want to travel from MCO to PHL.

ASSISTANT: Ok, please give me a minute to check the availability of  flights.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you, there are no flights running in the dates you have provided for me.

USER: Oh! So sad to hear. Anyway, thank you for the information.

ASSISTANT: You are welcome. Thank you for reaching us.