You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, please let me know your name.

USER: Sure, my name is Jessica Johnson.

ASSISTANT: Ok Johnson, how may I guide you at this moment?

USER: I am planning a trip in the month of July to enjoy the summer holidays, can you please book a flight ticket for me?

ASSISTANT: Yes, I can help you.

USER: Thanks.

ASSISTANT: Can you please provide me your travel airport codes for better search?

USER: The airfield locations which I prefer to travel is from PHL to SEA.

ASSISTANT: Ok, what are your planned travelling dates?

USER: I will departure on 07/22 and return back from SEA on 07/24.

ASSISTANT: Ok, can you please give me a minute to check the flights?

USER: Ok, please take your time.

ASSISTANT: Thank you for waiting.

USER: That's fine.

ASSISTANT: Sorry to inform you that, there are no flights running in the dates you have given due to some climatic changes.

USER: It's sad to hear, but no issues with that.

ASSISTANT: Thank you for your positive response.

USER: Thank you for searching and quick help.

ASSISTANT: You are welcome. Have a nice day.