You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jessica Mitchell.

ASSISTANT: Ok, can you please tell me how can I assist you?

USER: I am planning to travel from PHX to HOU, can you help in booking a flight?

ASSISTANT: Ok, can you please share your travelling dates?

USER: My date of travelling is on 03/28 to 03/30.

ASSISTANT: Sure, I am keeping the conversation on hold to check the best flights availability in your route.

USER: Sure.

ASSISTANT: Sorry for the inconvenience, I did not find any flight ticket on your dates to reserve your flight ticket.

USER: That's ok. Thank you for information.

ASSISTANT: Sorry, next time we can serve you better. Thank you for reaching us.

USER: That's ok.