You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sharon Campbell from San Francisco.

ASSISTANT: Can you please let me know how may I help you?

USER: I need a flight ticket booking to attend a marriage event, can you please book a flight ticket for me?

ASSISTANT: Yes, I am here to help you with the ticket booking. Can you please provide me your airport codes?

USER: Thank you and my airport codes are from SFO to PHX.

ASSISTANT: Ok, can you please tell me your travel dates?

USER: My travel dates are 03/15 and back on 03/17 with a zero halt in my journey.

ASSISTANT: Ok, please be on hold for a minute.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to inform you, there is no flight available for you on the dates you have provided.

USER: Ok, no issues with that one. I can reach another agency to book the ticket. Thank you so much for your help in searching.

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

USER: Most welcome.