You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What service do you need from our agency?

USER: Actually, I am looking for a direct flight, because there is an emergency in my travel location, so can you please help me out with booking of a flight ticket?

ASSISTANT: Sure, I can aid you with that.

USER: Thank you.

ASSISTANT: Can you please let me know the airfield codes?

USER: I want to travel from PHL to BOS.

ASSISTANT: Ok, can you please share your planned travel dates?

USER: Sure, I want to take off from my location on 07/23 and please book a return ticket on 07/25.

ASSISTANT: Ok, please hold on for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you that, there are no flights in the dates you have given.

USER: Oh! So sad to hear. Anyway, I will choose another alternative to go there. Thank you for the information.

ASSISTANT: You are welcome. Thank you for connecting with our travel agency.

USER: Welcome.

ASSISTANT: Can you please let me know your good name for documentation purpose?

USER: Sorry I thought, I had given it already. My name is Anthony Gonzalez.

ASSISTANT: Ok, thank you for providing the information.

USER: Thank you for your time.